# ephotonics : Photonics Solutions for your Laser Systems


## Posts

- [Laser Peak Power](https://ephotonics.com/laser-peak-power/): In the world of photonics, not all watts are created equal. While average power tells you how much energy a laser delivers over time, Laser Peak Power tells you the intensity of the blow. Defined as the highest power level achieved during a single optical pulse, peak power is the critical parameter that determines whether a laser will gently warm a surface or instantly vaporize it. Whether you are performing delicate LASIK surgery, conducting high-harmonic generation research or cutting industrial steel, accurate calculation of peak power is the difference between success and catastrophic component failure. How to Calculate Peak Power To accurately […]
- [Wavelength](https://ephotonics.com/wavelength/): Every time you see a rainbow, tune a laser, or stream data through a fiber-optic cable, one number quietly governs everything: wavelength. It determines the color your eye perceives, the distance a laser beam can travel without spreading, and whether two light waves cancel each other out or combine into a blinding peak. Understanding wavelength isn’t just textbook physics, it is the foundation on which all of modern photonics is built. What is a Wavelength? Imagine freezing a wave in time and taking a photograph. The wavelength, symbol λ (Greek letter lambda) is simply the distance from one crest to the next, or equivalently from […]
- [Why Laser Diodes Shift Wavelength with Temperature](https://ephotonics.com/laser-diode-wavelength-temperature-tuning/): Precise wavelength control is one of the most critical and most underappreciated challenges in laser diode and laser applications. Whether you are pumping a Yb-doped fiber laser, driving a solid-state crystal, performing Raman spectroscopy or locking an atomic transition line like Rubidium at 780.24 nm, your experimental success depends not just on having a laser diode, but on having one that emits at exactly the right wavelength. The problem is that manufacturing a laser diode is nothing like machining a screw. Semiconductor fabrication tolerances are wide by nature. A standard off-the-shelf laser diode datasheet typically lists a center wavelength tolerance […]
- [How to Maximize the Efficiency and Lifespan of Your Laser Diode Driver](https://ephotonics.com/maximize-laser-diode-driver-lifespan/): Laser diode drivers play a crucial role in controlling the performance of laser diodes, ensuring they operate efficiently and reliably. A well-maintained laser diode driver can significantly improve the efficiency and lifespan of the entire laser system. Whether you are working in industrial applications, research, or medical devices, maximizing the performance and longevity of your laser diode driver is essential for optimal operation and reduced costs. Here’s how you can achieve that. Start with correct current regulation Laser diodes should be driven with a constant-current laser diode driver because small electrical changes can cause large current shifts and overheating. Choose a driver […]
- [How Diode Driver Noise and Transients Kill Your Laser’s Performance](https://ephotonics.com/diode-driver-noise-transients/): You’ve spent weeks characterizing your application. You selected a single-mode, specific-wavelength laser diode with the exact spectral purity required for your interferometry or sensing project. You integrated it, turned it on, and… the signal-to-noise ratio is degrading. The linewidth is broader than the manufacturer promised. The beam is “jittery.” Before you blame the semiconductor, look at the power source. In high-precision photonics, the laser diode driver is often the most overlooked component in the signal chain. Too many engineers treat the driver as a simple battery, a way to get current from A to B. But physically, your driver is the “heartbeat” of your […]
- [ephotonics appointed official authorized BWT distributor ](https://ephotonics.com/ephotonics-appointed-bwt-distributor/): ephotonics is proud to announce a new strategic distributorship agreement with BWT Beijing, a global manufacturer in high-power semiconductor laser technology. Through partnership, ephotonics becomes the official authorized distribution partner for BWT laser diode solutions across Canada and the Americas, strengthening our capability to provide high-performance laser sources to industrial, medical and scientific sectors. With over two decades of manufacturing excellence, BWT Beijing has established an international reputation for innovation in laser diode technology. Their extensive portfolio includes high-brightness fiber-coupled modules, bar-stacked diode arrays and high-power turn-key laser diode systems. These products are trusted by leading medical device manufacturers, laser developers and research institutions worldwide […]
- [ephotonics Sponsors COPL Soccer League at Université Laval](https://ephotonics.com/ephotonics-sponsors-copl-soccer-league-at-universite-laval/): ephotonics was the sponsor of the third annual Center for Optics, Photonics and Lasers (COPL) Soccer League at Université Laval this season. We are pleased to support this initiative, which has become a meaningful fixture in the academic and professional community. Strengthening Community and Collaboration The COPL League offers a unique platform that brings together researchers, students, and professionals in optics and photonics for weekly soccer matches in a relaxed and friendly atmosphere. This engagement helps strengthen the personal connections and informal exchanges that ultimately support innovation and collaboration in our field. A Season of Friendly Competition The season ended […]
- [Beam Quality: Your Laser’s True Potential](https://ephotonics.com/laser-beam-quality/): One of the most thrown-around words in laser tech is “beam quality” but what exactly is it, and why should one care? It makes a difference as to how well your laser is performing the particular task at hand, be it cutting steel, engraving glass, or some other scientific experiment. 1.What Is Beam Quality in Laser Systems? Beam quality refers to how closely a laser beam resembles an ideal Gaussian beam, which is the gold standard for precision and efficiency. An ideal Gaussian beam has perfect spatial coherence and focusability, allowing for highly accurate applications. The parameter M² quantifies deviations […]
- [Wavenumber](https://ephotonics.com/wavenumber/): Whether a physics student, a science enthusiast, or even an engineer who deals with light, one definetely would have heard the word “wavenumber” being mentioned once in his way. But what does that term mean, and why should one take an interest in it? It is time to delve deep into this mystery idea, dig up the importance it carries, and find out why it plays such a vital role in the world of optics, waves, and light. In other words, the wavenumber is the number of wave cycles in any given linear unit of distance. As a matter of fact, much of this had more to do with counting ripples on the pond, except this time it would deal with with light or sound waves navigating through space. What is Wavenumber? Wavenumber, often written as ν, represents the number of wavelengths that could fit into a given distance. It is commonly expressed in units of reciprocal meters (m⁻¹) or inverse centimeters (cm⁻¹). The wavenumber states how many times a wave vibrates up and […]
- [Brewster's Angle](https://ephotonics.com/brewsters-angle/): If ever reflection and polarization of light puzzled you, you probably have heard something about Brewster’s angle. In fact, such an interesting optical effect has found broad application in quite a few fields of activity, beginning with laser systems and photography, and ending with many others. In the following article, we will explain what Brewster’s angle is, how it works, and why it is so important.   What is Brewster’s Angle? Brewster’s angle, also called polarization angle, is that particular angle at which light of a certain polarization passes through a transparent surface without reflection. In other words, it is an angle at which light approaches a surface and reflects from it so that the light becomes completely polarized. This means the reflected light vibrates in only one direction rather than in several directions. A […]
- [Numerical Aperture: Key Concepts, Importance and Applications](https://ephotonics.com/numerical-aperture/): Understanding Numerical Aperture (NA) is crucially important in optical systems where precision and clarity matter. The performance and quality of lenses, microscopes, and fiber optics depend hugely on numerical aperture, as it would affect anything from image resolution to light-gathering capabilities within those lenses. This article takes a closer look at what numerical aperture is, why it’s important, and how it finds application in everything from microscopy to telecommunications. What is Numerical Aperture (NA)? Numerical aperture is a dimensionless number relating to the acceptance angle of an optical component (a lens or an objective) and its ability to collect light […]
- [Fresnel Reflection: How Light Interacts with Surfaces](https://ephotonics.com/fresnel-reflection/): Ever wondered why a lake appears so much darker when viewed directly but then changes into a mirror at a shallow angle, or why shiny surfaces happen to be so much brighter at some view positions? These can be explained by applying the very basic notion of Fresnel reflection in optics that helps explain how light interacts with different interfaces. What is Fresnel Reflection? Named after French physicist Augustin-Jean Fresnel, Fresnel reflection describes the dependence of the amount of reflected light upon the angle under which the surface is viewed. The fact forms the very basis of everything from everyday […]
- [Greek Alphabet in Photonics](https://ephotonics.com/greek-alphabet-in-photonics/): The Greek alphabet is conventionally used in photonics to represent multiple physical quantities, variables and constants. Greek letters represent an internationally comprehended language in which many important physical quantities and variables are represented. It provides clarity and consistency in communicating research papers, technical documents, and lectures all over the world. In the time of Greek philosophers, the letters and symbols used to denote physical properties and constants were thus supplied by such ancient Greek mathematicians and scientists as Euclid and Archimedes. Over time, Greek symbols conventionally became universally accepted to stand for certain constant values or physical properties, hence universalizing […]
- [What is Photonics?  ](https://ephotonics.com/what-is-photonics/): Have you ever held a smartphone, browsed the internet, or video-called your friend from the other part of the world? All these everyday activities depend on a magical science called photonics, actually lying at almost every modern technology backbone. But what, precisely, is photonics, and why should it matter? What Does Photonics Mean? Photonics is the science of light. It ifocuses on the study of photons, really tiny entities composing light. From the display glowing in your phone to the fiber-optic cables carrying an internet signal, photonics is part of the huge number of technologies that connect people, entertain them, […]
- [What is a Photon?](https://ephotonics.com/what-is-a-photon/): Just think about a sunny day outside, where the heat of the sun touches your skin. Actually, you are being bombarded by billions of tiny particles called photons streaming from the Sun across 93 million miles of space to reach Earth. Moving with such energy, these particles light up all that they touch, heating your skin up at the speed of light. Amazingly, the heat and light you feel are supplied by interactions at the microscopic level: photons interacting with and energizing the molecules of your skin that sense temperature. But what exactly are these photons? They are not just […]
- [What is Mode Field Diameter in Optical Fibers?](https://ephotonics.com/mode-field-diameter-in-optical-fibers/): Within optical fiber technology, the Mode Field Diameter (MF) is the term used to define the effective width size of the light-carrying core in single-mode fiber. While in multimode fibers multiple light paths are being guided, in single-mode fibers, only one mode of light is transmitted. MFD is very important in order to understand how light is propagating through the core, since this makes great effects on the fiber performance concerning signal transmission, its efficiency, and coupling to other optical components. What is Mode Field Diameter? FMFD is not the diameter of the physical core of the fiber but instead […]
- [V number in Optical Fibers](https://ephotonics.com/v-number-in-optical-fibers/): The V number is one of the most basic concepts in optical fibers. In fact, this concept has stayed so far very important, it determined performances and behavior of fiber optic systems. This basic insight into the nature of the V number opens up a very deep insight into how in fact optical fibers work-a very important question if one wants to design efficient high-performance communication systems and fiber lasers. The article presents the value of the V number, its origin, and its main applications in a manner that is easy to comprehend for the understanding of this important feature […]
- [Converting dB to Percentage and vice versa: Importance in Laser Systems and General Applications](https://ephotonics.com/converting-db-to-percentage-and-vice-versa/): It’s nice to be able to convert from dB to percent and vice versa, and it can be used in many areas of work: signal processing, acoustics, lasers, and electronics. Decibel is a logarithmic dimensionless unit. It expresses relationships between two levels. The logarithmical scale might serve effectively to represent big variations in power, unlike a linear scale, in which such variations are greatly limited, which is very useful in contexts where such variations are huge. Understanding dB to Percentage and Percentage to dB Conversions First of all, do you know that decibel measurement is on a logarithmic scale? That […]
- [Snell's Law: Why Light Bends and How We Can Predict It](https://ephotonics.com/snells-law-why-light-bends-and-how-we-can-predict-it/): Ever wonder why a straw or even a plant appears to bend in water or why your legs look weird when you’re standing in a pool? Well, all of this ‘bending’ of the light is actually called refraction, and it’s all behind something known as Snell’s Law. Why this is so vital in everyday life is just what we are going to explore in this article. What is Snell’s Law? Snell’s law can let us know how and why the light is going to bend when it travels from one material into another. For example, it would just about be the same thing as running from the dry sand right into the water at the beach-you are slowing down and changing direction a bit. Only this time, we are talking about light in travel. Why Does Light Bend? […]
- [Industry Applications of Laser Diode Drivers](https://ephotonics.com/industry-applications-of-laser-diode-drivers/): Laser diode drivers are essential in the photonics industry because they provide precise control over laser diodes. These drivers are the backbone of many applications, from telecommunications to medical diagnostics. In this article, we’ll explore some of the key uses of laser diode drivers and highlight why they’re so important for various industries. What is a Laser Diode Driver? Laser diode drivers are electronic devices that supply the current and voltage for laser diodes to work. They are critical in maintaining the performance, stability and life of the laser diodes. They regulate the power output to keep the laser within […]

## Pages

- [Ohms to Volt-Ampere Calculator](https://ephotonics.com/calculators/ohms-to-volt-ampere/): Calculators / Ohms to Volt-Ampere Ohms to Volt-Ampere Calculator Resistance · Voltage · Current · Apparent Power Enter Resistance and one other value to calculate Apparent Power (VA). Resistance (Ω) ΩkΩMΩ Voltage (V) mVVkV Current (I) µAmAA Apparent Power (VA) mVAVAkVA Clear Fields ephotonics linkedin.com/company/ephotonics Follow our page for weekly engineering guides, electrical tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Ohm’s Law Calculator Fundamental electrical relations dBm to Watts Logarithmic to linear power RLC Circuit Calculator Resonance and AC impedance LD Driver Compliance Voltage for diode driving How the Ohms to Volt-Ampere […]
- [RLC Circuit Calculator: Impedance, Resonance & Q Factor](https://ephotonics.com/calculators/rlc-circuit/): Calculators / RLC Circuit Calculator RLC Circuit Calculator Resonance · Impedance · Quality Factor · Phase SERIES RLC PARALLEL RLC Resistance (R) ΩkΩ Frequency (f) HzkHzMHz Inductance (L) HmHμH Capacitance (C) μFnFpF Impedance (Z) — Phase Angle (θ) — Resonant Freq (f₀) — Quality Factor (Q) — System is currently: Inductive ephotonics linkedin.com/company/ephotonics Follow our page for weekly engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Ohm’s Law Calculator Basic V, I, R, and P circuit math dBm to Voltage Calculate Vrms using system impedance Optical Q-factor Analyze resonance sharpness […]
- [Ohm's Law Calculator](https://ephotonics.com/calculators/ohms-law/): Calculators / Ohm’s Law Calculator Ohm’s Law Calculator Voltage · Current · Resistance · Power Enter any two values to calculate the others. Voltage (V) mVVkV Current (I) µAmAA Resistance (R) ΩkΩMΩ Power (P) mWWkW Clear All Fields ephotonics linkedin.com/company/ephotonics Follow our page for weekly engineering guides, electrical tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All dBm to Watts Convert power levels (log to linear) dBm to Voltage Calculate Vrms from power & impedance LD Compliance Voltage Driver voltage requirement for diodes NTC Thermistor Find temperature from resistance Understanding Ohm’s Law Ohm’s Law […]
- [Photodiode Responsivity & Quantum Efficiency Calculator](https://ephotonics.com/calculators/photodiode-responsivity/): Calculators / Photodiode Responsivity Calculator Photodiode Responsivity & QE Calculator Quantum Efficiency · Photocurrent · Noise Equivalent Power Responsivity & QE Photocurrent NEP & Noise Floor Calculate Responsivity (from QE)Quantum Efficiency (from Responsivity) Wavelength (λ) nmµm Quantum Efficiency (QE) %Ratio (0-1) Responsivity (R) A/WmA/W Photodiode Responsivity 0.00 A/W Quantum Efficiency 0.00% Incident Optical Power WmWµWnW Responsivity (R) A/WmA/W Generated Photocurrent 0.00 A Responsivity (R) A/WmA/W Dark Current (Id) µAnApA Bandwidth (Δf) HzkHzMHzGHz Noise Equivalent Power (NEP) – Minimum Detectable Power (MDP) – RMS Shot Noise Current – ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and […]
- [Duty Cycle Calculator](https://ephotonics.com/calculators/duty-cycle/): Calculators / Duty Cycle Calculator Duty Cycle Calculator Electronics & Laser Optics · Time & Power Ratios · Pulse Energy Time-Based (Electronics) Power-Based (Lasers) Advanced Laser Pulse Pulse Width (On-Time) nsµsmss Frequency (Repetition Rate) HzkHzMHzGHz Pulse width exceeds total period! Duty Cycle 0.00% Total Period (T) – Off-Time – Average Power mWWkW Peak Power mWWkW Average power cannot exceed Peak power! Duty Cycle 0.00% Pulse Width fspsnsµsms Repetition Rate (Freq) HzkHzMHz Peak Power WkWMWGW Duty Cycle 0.00% Average Power – Pulse Energy – ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly […]
- [Optical Fiber Latency & Delay Calculator](https://ephotonics.com/calculators/optical-fiber-latency/): Calculators / Optical Fiber Latency Calculator Optical Fiber Latency & Delay Calculator Fiber Length · Propagation Delay · Refractive Index Compute signal propagation time or required fiber length. Find Latency (Time) Find Fiber Length Group Refractive Index (n) — Load Standard Fiber —Corning SMF-28 @ 1550nm (1.4682)Corning SMF-28 @ 1310nm (1.4677)OM3 / OM4 Multimode @ 850nm (1.482)Pure Fused Silica (1.444) Fiber Length (L) kmmetersmilesfeet Target Delay / Latency (t) msµsns Compute Result Calculated Latency (Delay) — Waiting for input… ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow […]
- [Wall-plug Efficiency Calculator](https://ephotonics.com/calculators/wall-plug-efficiency/): Calculators / Wall-Plug Efficiency Calculator Wall-Plug Efficiency Calculator Optical Power · Electrical Input · Conversion Efficiency Compute the true electro-optical efficiency of your laser diode. Operating Voltage (Vop) V Operating Current (Iop) AmA Optical Output Power (Pout) WmW Compute Efficiency Wall-Plug Efficiency (ηWPE) — Total Electrical Input (Pin) — Waste Heat Generated (Qactive) — Your laser is generating 0 W of waste heat. This must be dissipated to prevent thermal runaway. Size a TEC Module Hardware High-Efficiency Laser Diodes Browse the catalog ephotonics @ephotonics Weekly laser engineering guides and new calculators released directly in your feed. Follow on LinkedIn Related […]
- [Rayleigh Range & Length Calculator](https://ephotonics.com/calculators/rayleigh-range/): Calculators / Rayleigh Range Rayleigh Range & Length Calculator Rayleigh Length · Beam Waist · Depth of Focus Wavelength (λ) nm Beam Waist Radius (w0) Switch to Diameter (2w₀) μm Refractive Index of Medium (n) n Calculate Range Please enter valid numerical values. All inputs must be > 0. Rayleigh Range (zR) 0.00 mm Depth of Focus (b): 0.00 mm How the Rayleigh Range Calculator Works In Gaussian beam optics, lasers do not focus down to an infinitely small point, nor do they stay perfectly collimated forever. Instead, they focus down to a narrow Beam Waist (w0) and then slowly […]
- [Q-Factor Calculator](https://ephotonics.com/calculators/optical-q-factor/): Calculators / Optical Q-Factor Optical Q-Factor & Photon Lifetime Calculator Quality Factor · Linewidth (FWHM) · Cavity Lifetime Optical Q-Factor & Cavity Lifetime By Wavelength (OSA) By Frequency Center Wavelength (λ) nm Linewidth / FWHM (Δλ) nm Center Frequency (ν) THz Bandwidth / FWHM (Δν) GHz Calculate Q-Factor Please enter valid numerical values greater than 0. Quality Factor (Q) 0 Photon Lifetime (τp): 0 ps How the Optical Q-Factor Calculator Works In optics and laser physics, the Quality Factor (Q-factor) is a dimensionless number that describes how well an optical resonator (like a laser cavity or micro-ring resonator) stores energy. […]
- [Candela to Lumen - Lumen to Candela Calculator](https://ephotonics.com/calculators/candela-to-lumens/): Calculators / Candela to Lumens Candela to Lumens Calculator Candela (cd) · Lumens (lm) · Beam Angle Candela to Lumens Lumens to Candela Luminous Intensity cd Luminous Flux lm Apex Angle (Beam Angle) Degrees (°) Calculate Please enter valid numbers greater than 0. Resulting Luminous Flux 0.00 lm Solid Angle: 0.00 steradians (sr) How the Candela to Lumen Calculator Works In photometry, a Candela measures how bright a light source appears in one specific direction. A Lumen, on the other hand, measures the total amount of light emitted in a defined beam cone. To convert between the two, you must […]
- [TEC Thermal Load Calculator](https://ephotonics.com/calculators/tec-thermal-load/): Calculators / TEC Thermal Load Calculator TEC Thermal Load Calculator Heat Load · Cooling Power · Thermoelectric Module 1. Active Heat Source (Laser Diode) Operating Voltage (Vop) V Operating Current (Iop) A Optical Output Power (Pout) W 2. Temperature Gradient Target Cold Plate Temp (Tc) °C Heatsink / Ambient Temp (Th) °C 3. Passive Thermal Leakage Cooled Surface Area (A) cm² Environmental Insulation Uninsulated (Still Air)Insulated (Foam / Enclosed)Vacuum Chamber (Radiative) Please fill in all laser parameters correctly. Compute Thermal Load Active Heat Load — Passive Heat Load — Total Heat Load (Qc) — Required Temp Diff (ΔT) — TEC […]
- [SAG Calculator](https://ephotonics.com/calculators/lens-sag/): Calculators / Lens Sag Calculator SAG Calculator Sagitta · Radius of Curvature · Lens Diameter · Surface Geometry Radius of Curvature (R) mmcminch Lens Diameter (d) mmcminch Compute Lens Sag Lens Sag (s) — Aperture Radius (r) — ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Lens Thickness SAG value drives center and edge thickness Thin Lens Equation Radius of curvature determines focal length Fresnel Reflection Calculate reflection loss at lens surfaces Laser Beam Spot Size Lens focal length sets the focused […]
- [NTC Thermistor Calculator](https://ephotonics.com/calculators/ntc-thermistor/): NTC Thermistor Calculator Convert thermistor resistance to temperature using the Beta (β) model. Find Temperature Find Resistance Nominal Resistance (R₀) Ω Beta Constant (β) K Nominal Temp (T₀) °C Measured Resistance Ω Calculated Temperature — °C 1/T = 1/T₀ + (1/β)⋅ln(R/R₀) Reset Follow ephotonics on LinkedIn How it works? The Beta (β) Parameter Model NTC (Negative Temperature Coefficient) thermistors are specialized resistors that exhibit a predictable decrease in resistance as temperature increases. This calculator utilizes the Beta Parameter Equation to model this non-linear relationship. $$ frac{1}{T} = frac{1}{T_0} + frac{1}{beta} lnleft(frac{R}{R_0}right) $$ The Beta Model Equation Variables Defined: T: The […]
- [Angstrom  to nanometer converter](https://ephotonics.com/calculators/angstrom-to-nanometer/): Calculators / Angstrom to Nanometer Angstrom to Nanometer Converter Angstrom (Å) · Nanometer (nm) · Micrometer (µm) Enter a value in either field to convert instantly. Angstrom Å ⇌ Nanometer nm Clear Fields — 1 nm = 10 Å ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Frequency to Wavelength Converter Convert wavelength and optical frequency Wavelength to Wavenumber Calculator Convert wavelength into inverse centimeters Wavenumber to Wavelength Calculator Switch from inverse length to wavelength Photon Energy Calculator Find photon energy from […]
- [Laser Focusing & Spot Size Simulator](https://ephotonics.com/simulators/laser-focusing-spot-size/): Laser Focusing & Spot Size Simulator Visualize Gaussian beam focusing in real time. Adjust Focal Length, Input Beam Diameter, and M² Beam Quality to calculate focused spot size, depth of focus, and peak intensity instantly. Laser Focusing & Spot Size Simulator w₀ = M²λf / πwin I₀ = 2P / πw₀² Full Screen Exit Full Screen ⛶ ✕ HOVER TO MEASURE INTENSITY · CLICK TO PIN MEASUREMENT Beam Input 405 nm 532 nm 808 nm 976 nm 1064 nm Input Beam Dia. D 5.0 mm M² Beam Quality 1.0 Focusing Lens Focal Length f 50 mm f-number (f/#) f/10 Transmission […]
- [Fiber Coupling Efficiency Simulator](https://ephotonics.com/simulators/fiber-coupling-efficiency/): Fiber Coupling Efficiency Simulator Simulate laser diode-to-fiber coupling in real time. Adjust Fast & Slow Axis Divergence, Lens Focal Length, and Fiber NA & Core Diameter to calculate mode overlap, NA mismatch loss, and total coupling efficiency. Fiber Coupling Efficiency Simulator η = exp(−2Δx²/w²) · overlap ηNA = 1 − exp(−2NA²/θ²) Full Screen Exit Full Screen ⛶ ✕ ADJUST SLIDERS TO SIMULATE COUPLING · FA & SA AXES SHOWN Laser Diode Source Wavelength λ 976 nm Fast-Axis Div. θFA 40° Slow-Axis Div. θSA 10° Coupling Lens Focal Length f 4.5 mm Lens NA 0.55 M² Beam Quality 1.2 Fiber Parameters […]
- [Laser Beam Divergence Simulator](https://ephotonics.com/simulators/laser-beam-divergence/): Interactive Laser Beam Divergence Simulator Visualize how a real laser beam propagates in space. Adjust Beam Waist, Wavelength, and M² Beam Quality to instantly see divergence, Rayleigh range, and Gaussian intensity profile. Laser Beam Divergence Simulator w(z) = w₀ √(1 + (z/zₙ)²) θ = M²λ / πw₀ Full Screen Exit Full Screen ⛶ ✕ HOVER TO MEASURE · BEAM WIDTH AT ANY DISTANCE Wavelength 405 nm 532 nm 660 nm 976 nm 1064 nm nm Set Beam Parameters Waist w₀ 0.50 mm M² Beam Quality 1.0 View Max Distance 5 m Vertical Scale 5× Live Measurements Divergence θ — Rayleigh […]
- [Snell's Law Simulator](https://ephotonics.com/simulators/snells-law/): Interactive Snell’s Law Simulator Visualize how light bends at the boundary between two media. Drag the ray to explore the relationship between Angle of Incidence, Refractive Index, and Total Internal Reflection in real-time. Snell’s Law Simulator n₁ · sin(θ₁) = n₂ · sin(θ₂) n₁ = 1.00 — Air n₂ = 1.52 — Glass ⚠ Total Internal Reflection Drag the ray to change angle Incident θ₁ 45.0° Refracted θ₂ 28.1° Critical θc N/A Status Refracted Medium 1 — Top 1.00 Air Water Glass Diamond Medium 2 — Bottom 1.52 Air Water Glass Diamond Follow us on LinkedIn 📡 API Access & […]
- [Gaussian Beam Focusing Simulator](https://ephotonics.com/simulators/gaussian-beam-focusing/): Interactive Gaussian Beam Focusing Simulator Visualize the optics of laser focusing. Drag the lens to see how Input Diameter and Focal Length determine the theoretical diffraction limit and Spot Size. ephotonics | Beam Focusing Tool Gaussian Optics Simulator v2.0 w₀ = (λf)/(πw) Spot Radius (w₀) —µm Divergence (θ) —mrad Reference λ 1064 nm Status ACTIVE_CALC Optical Physics Note The simulation assumes a TEM₀₀ Gaussian beam profile. The spot size is defined at the 1/e² intensity point. Focusing elements converge the beam to a diffraction-limited waist determined by the numerical aperture. Parameter Control Optical Element Bi-Convex Lens Bi-Convex LensPlano-ConvexAchromatic DoubletAspheric LensBi-Concave […]
- [Simulators](https://ephotonics.com/simulators/): Interactive Photonics Engineering Tools Visualize the math behind the light. A suite of free simulators for optical fiber design, laser physics, and spectral analysis. Photonics Interactive Electromagnetic Wave Simulator Visualize the full electromagnetic spectrum in real time. Drag the slider to explore the inverse relationship between wavelength, frequency, and photon energy, from radio waves to gamma radiation. Launch Simulator → Laser Optics Interactive Gaussian Beam Focusing Simulator Simulate how a Gaussian laser beam focuses through a lens. Adjust beam diameter and focal length to calculate spot size, divergence angle, and Rayleigh range across 5 optical element types. Launch Simulator → […]
- [Electromagnetic Spectrum Simulator](https://ephotonics.com/simulators/electromagnetic-spectrum/): Interactive Electromagnetic Spectrum Simulator Visualize the physics of light. Drag the slider to explore the relationship between Wavelength, Frequency, and Photon Energy in real-time. ElectroMAGNETIC Spectrum Simulator RADIO WAVES Comparable Size: 🏢 Buildings Frequency 100 MHz Wavelength 3 m Photon Energy Low Follow us on LinkedIn Understanding the Physics of Electromagnetic Spectrum The simulator above demonstrates the fundamental relationship that governs all photonics: the connection between Wavelength (λ), Frequency (f), and Energy (E). As you drag the slider from left (Radio) to right (Gamma), you are witnessing an inverse relationship. Because the speed of light (c) is a universal constant, […]
- [Laser Diode Lifetime Calculator – Arrhenius Reliability Estimator](https://ephotonics.com/calculators/laser-diode-lifetime/): Calculators / Laser Diode Lifetime Calculator Laser Diode Lifetime Calculator Expected Lifespan · Thermal Degradation 1. Datasheet Baseline (Reference) Ref. Lifetime (Hours) ? Ref. Temperature (°C) 2. Your Operating Conditions Operating Temp (°C) Activation Energy (eV) ? Estimated New Lifetime — Hours Capacity Remaining — Degradation Rate — Lifetime Retained — Temp Rise Critical Warning: Operating at > 50°C dramatically accelerates diffusion degradation. Consider active cooling (TEC). ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Heat Transfer Calculate required thermal dissipation […]
- [Laser Diode Temperature Tuning Calculator](https://ephotonics.com/calculators/laser-diode-temperature-tuning/): Calculators / Laser Diode Temperature Tuning Calculator Laser Diode Temperature Tuning Calculator Wavelength Shift · Thermal Setpoint Control Current Wavelength (nm) Test Temperature (°C) Target Wavelength (nm) Tuning Coeff. (nm/°C) Required Setpoint Temperature — °C Warning: Calculated temperature is outside standard operating range (15°C – 35°C). Ensure your Laser Diode Mount can handle this load. Cooler (-ΔT) 25°C Hotter (+ΔT) ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Frequency ↔ Wavelength Convert your tuned wavelength to frequency Laser Peak Power Check output […]
- [NOHD Calculator – Laser Hazard Distance  and Safety](https://ephotonics.com/calculators/laser-safety-nohd/): Calculators / NOHD Calculator NOHD Calculator Nominal Ocular Hazard Distance · Laser Safety Calculate the theoretical Nominal Ocular Hazard Distance (NOHD). This is the distance at which laser beam irradiance falls below the Maximum Permissible Exposure (MPE) limit. Avg. Power (Φ) mW Divergence (θ) mrad MPE Limit mW/cm² Copy — Safe Distance (NOHD) *Assumes Gaussian beam profile. Verified against ANSI Z136.1.Always consult a certified LSO for official compliance. Reset Calculator Found this useful? Follow ephotonics for weekly laser engineering guides and new calculator releases. Follow on LinkedIn Next step — related calculators Optical Density — Verify your goggle OD rating […]
- [Diode Laser Systems](https://ephotonics.com/diode-laser-systems-2/): Diode Laser Systems INTEGRATED HIGH-POWER TURN-KEY FIBER COUPLED LASER DIODE SOLUTIONS Expanding Catalog Series Coming Soon Our engineering team is currently finalizing the technical specifications and performance datasets for this series. Full documentation and ordering capabilities will be available shortly.
- [Laser Beam Expander Calculator | Calculate Magnification & Divergence](https://ephotonics.com/calculators/laser-beam-expander/): Calculators / Laser Beam Expander Calculator Laser Beam Expander Calculator Magnification Ratio · Output Beam Diameter Input Magnification (M) Input Focal Lengths (f₁, f₂) Magnification Power (M) X Input Lens (f₁) mm Output Lens (f₂) mm Input Beam Dia. (Ø) mm Input Divergence (θ) mrad Target Distance (L) – Opt. m Calculate Expansion Output Diameter —mm Output Divergence —mrad Magnification —X Dia. at Target Dist. —mm Waiting for distance input… ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Spot Size Determine […]
- [Lens Thickness Calculator](https://ephotonics.com/calculators/lens-thickness/): Calculators / Lens Thickness Calculator Lens Thickness Calculator Center Thickness · Edge Thickness · Sagitta Lens Material Standard Plastic (CR-39) – n=1.498Crown Glass – n=1.523Trivex – n=1.530Polycarbonate – n=1.586High Index 1.60 – n=1.600High Index 1.67 – n=1.670High Index 1.74 – n=1.740Custom Index… Refractive Index (n): Sphere (SPH) Cylinder (CYL) Use negative (-) for nearsightedness, positive (+) for farsightedness. Lens Diameter (mm) Min. Thickness (mm) For Minus lenses: Min thickness is at the Center. For Plus lenses: Min thickness is at the Edge. Calculate Thickness Max Edge Thickness — millimeters Center Thickness — millimeters Lens Type — ephotonics linkedin.com/company/ephotonics Follow our […]
- [OD to Transmission Calculator | Optical Density Converter](https://ephotonics.com/calculators/optical-density-to-transmission/): Calculators / Optical Density (OD) to Transmission Calculator Optical Density (OD) to Transmission Calculator Optical Density · Transmission (%) · Attenuation Input Optical Density (OD) Input Transmission (%) Optical Density (OD) OD Transmission Percentage (T) % Calculate Conversion Transmission — % Attenuation — dB Scientific Notation — ephotonics linkedin.com/company/ephotonics Follow our page for photonics calculators, laser engineering content, and practical optics guides shared regularly. Follow on LinkedIn Related Calculators All Decibel-Percentage Calculator Compare attenuation and transmission values Fresnel Reflection Calculator Estimate reflected and transmitted optical power Laser Power Density (Fluence) Calculator See how transmission changes delivered energy density Laser Safety […]
- [Coherence Length Calculator | Convert Bandwidth to Coherence Time](https://ephotonics.com/calculators/coherence-length/): Calculators / Coherence Length Calculator Coherence Length Calculator Laser Coherence · Spectral Linewidth · Optical Interference Center Wavelength (λ₀) nmµm Spectral Linewidth (Δλ or Δν) nm (Δλ)MHz (Δν)GHz (Δν)kHz (Δν) Select whether your bandwidth is in wavelength (nm) or frequency (Hz). Calculate Coherence Length Coherence Length (Lc) — meters Coherence Time (τc) — seconds ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Frequency to Wavelength Convert spectral bandwidth between units Wavenumber to Wavelength Convert linewidth from cm⁻¹ to nm Gaussian Beam Divergence […]
- [Laser Heat Transfer Calculator | Temperature Rise Estimate](https://ephotonics.com/calculators/laser-heat-transfer/): Calculators / Laser Heat Transfer Calculator Laser Heat Transfer Calculator Thermal Resistance · Heat Dissipation · Junction Temperature Target Material Aluminum (6061)Stainless Steel (304)CopperTitaniumSiliconGlass (Fused Silica)Custom Material… Material Properties (Approx.) Density (ρ) g/cm³ Specific Heat (cp) J/g·K (Properties auto-filled. Clear fields to enter manually.) Laser Power (P) WmW Absorptivity (η) % Beam Diameter mmcmµm Exposure Time mss Material Thickness (h) mm Calculate Temperature Rise Temp. Increase (ΔT) — °C Final Temperature — Starting @ 20 °C ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related […]
- [Fiber Splice Loss Calculator | MFD Mismatch & Alignment](https://ephotonics.com/calculators/fiber-splice-loss/): Calculators / Fiber Splice Loss Calculator Fiber Splice Loss Calculator Fiber Optics · Splice Loss · Mode Field Diameter Fiber Mismatch (Intrinsic) Left Fiber MFD (2w1) µm Right Fiber MFD (2w2) µm Alignment Errors (Extrinsic) Lateral Offset (d) µm Angular Tilt (θ) deg (°) Wavelength (λ) nm Refractive Index (n) n Calculate Loss Estimated Splice Loss — — Transmission — ephotonics linkedin.com/company/ephotonics Follow us for weekly fusion splicing tutorials, fiber alignment tips, and new photonics tools. Follow on LinkedIn Related Calculators All › Mode Field DiameterRequired input for Splice Loss Fiber V-NumberCheck if fiber is single-mode Fresnel ReflectionCalculate air gap […]
- [dBm to Voltage Calculator | Vrms, Watts and Impedance](https://ephotonics.com/calculators/dbm-to-voltage/): dBm to Voltage and Power Calculator System Impedance (Z) Ω (Ohm) 50Ω (RF)  |  75Ω (Video)  |  1MΩ (Scope) Power Level (Logarithmic) dBm RMS Voltage (Vrms) VmVµV Linear Power (P) mWWµW Clear Fields How it works? In electronics and RF engineering, Power (P) and Voltage (V) are linked by the system Impedance ($R$). This calculator combines Ohm’s Law with the definition of the Decibel to allow instant translation between signal strength (dBm) and physical voltage. $$ P = frac{V_{rms}^2}{R} $$ Ohm’s Law for Power $$ dBm = 10 cdot log_{10} left( frac{V_{rms}^2}{R cdot 0.001} right) $$ Voltage to dBm Conversion […]
- [Laser Power Density & Fleunce Calculator](https://ephotonics.com/calculators/laser-power-density-fluence/): Calculators / Laser Power Density Calculator Laser Power Density Calculator Irradiance · Fluence · W/cm² Calculation Mode: CW Laser (Power Density)Pulsed Laser (Fluence) Beam Diameter (1/e²) mmcmµm Average Power (P) WmWkW Pulse Energy (E) mJJµJ Beam Profile Gaussian (2x Peak)Top Hat / Flat Top Calculate Peak Power Density — W/cm² Equivalent in kW/cm² — kW/cm² ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Beam Spot Size Find beam diameter — required input for W/cm² Laser Peak Power Calculate peak watts before […]
- [Pulse Energy Calculator](https://ephotonics.com/calculators/laser-pulse-energy/): Calculators / Laser Pulse Energy Calculator Laser Pulse Energy Calculator Laser Pulse Energy · Average Power · Repetition Rate Calculate pulse energy from average power and repetition rate. Results update instantly as you type. Average Power (Pavg) WmWµWkW Repetition Rate (frep) HzkHzMHzGHz Pulse Energy — E = Pavg / frep Reset ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Peak Power Convert pulse energy to peak watts Power Density Calculate fluence J/cm² from pulse energy Laser Beam Spot Size Find spot […]
- [Diffraction Grating Calculator](https://ephotonics.com/calculators/diffraction-grating/): Calculators / Diffraction Grating Calculator Diffraction Grating Calculator Grating Equation · Diffraction Orders · Wavelength & Angle Wavelength (λ) nmµm Grating Density (Grooves) lines/mm Incident Angle (θi) deg (°) Diffraction Order (m) Integer Calculate Diffraction Angle (θm) — Order does not exist (Evanescent). ephotonics @ephotonics Weekly laser engineering guides and new calculators released directly in your feed. Follow on LinkedIn Related Tools All Wavelength to cm⁻¹ Convert spectral units for spectroscopy Spectral Range (FSR) Cavity spacing and mode structure Coherence Length Resolving power and spectral linewidth Photon Energy Convert wavelength to eV or Joules How the Diffraction Grating Calculator Works […]
- [Critical Angle Calculator - Total Internal Reflection (TIR)](https://ephotonics.com/calculators/critical-angle/): Calculators / Critical Angle Calculator Critical Angle Calculator (TIR) Refractive Index · Incident Angle · Total Internal Reflection Refractive Index 1 (n1 – Denser) Index Refractive Index 2 (n2 – Rarer) Index Calculate Critical Angle (θc) — Error: n1 must be greater than n2 for TIR to occur. ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Brewster’s Angle Calculate polarization angle at interfaces Fresnel Reflection Calculate light loss at optical boundaries F-Number to NA Convert aperture specs for lens design Fiber V-Number […]
- [Spectral Range Calculator (FSR) | Frequency & Wavelength](https://ephotonics.com/calculators/spectral-range/): Calculators / Spectral Range Calculator Spectral Range Calculator Free Spectral Range · Cavity Length · Optical Frequency Cavity Length (L) mmcmm Refractive Index (n) Index Center Wavelength (λ0) nmµm Calculate FSR (Frequency) — FSR (Wavelength) — ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Wavelength to cm⁻¹ Convert spectral units for spectroscopy Wavenumber to λ Convert spectroscopic data back to nm Coherence Length Calculate Lc from spectral linewidth Photon Energy Convert wavelength to eV or Joules How the Spectral Range (FSR) Calculator […]
- [F-Number to NA Converter | f/# ↔ Numerical Aperture](https://ephotonics.com/calculators/f-number-to-na/): Calculators / F Number to Numerical Aperture Calculator F Number to Numerical Aperture Calculator F Number · Numerical Aperture · Optics Enter a value in either field to convert instantly. F-Number (f/#) f/# ⇌ Num. Aperture NA Clear Fields — Standard Approximation ephotonics linkedin.com/company/ephotonics Follow us for weekly imaging engineering guides, f-stop tutorials, and new optics tools directly in your feed. Follow on LinkedIn Related Calculators All › Numerical Aperture (NA)Fiber & microscope light-gathering Thin Lens EquationSolve for image & focal length Beam DivergenceNA based laser expansion Laser Spot SizeCalculate focus area from f/# How the F-Number to NA Converter […]
- [Gaussian Beam Divergence Calculator](https://ephotonics.com/calculators/gaussian-beam-divergence/): Calculators / Gaussian Beam Divergence Calculator Gaussian Beam Divergence Calculator Beam Divergence · Rayleigh Range · M² Quality Wavelength (λ) nmµm Beam Waist Radius (w0) mmµm Beam Quality (M2) Unitless Calculate Half-Angle Divergence (θ) — mrad Full-Angle Divergence (2θ) — mrad ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Beam Spot Size Calculate beam waist and focal diameter Beam Expander Reduce divergence with a beam expander Laser Safety (NOHD) Divergence is a key input for hazard distance Power Density Find W/cm² […]
- [Thin Lens Calculator - Focal Length and Magnification](https://ephotonics.com/calculators/thin-lens-equation/): Calculators / Thin Lens Equation Calculator Thin Lens Equation Calculator Focal Length · Object Distance · Image Distance I want to calculate: Image Distance (di)Object Distance (do)Focal Length (f)Magnification (M) Object Distance (do) mm Image Distance (di) mm Focal Length (f) mm Positive for Convex, Negative for Concave. Calculate Result — Magnification (M) — VIRTUAL • UPRIGHT • MINIFIED ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Beam Spot Size Focal length sets the focused beam diameter Laser Beam Expander Magnification […]
- [Custom Laser Diode Drivers](https://ephotonics.com/services/custom-laser-diode-drivers/): Custom Laser Diode Drivers design and Manufacturing We provide custom laser diode drivers designed to meet the specific requirements of your laser products and systems. With extensive expertise in electronics and laser system design, we specialize in industrial-grade driver solutions that deliver reliability and performance across a wide range of applications. Define your parameters, and we will develop a solution that meets your exact needs. Laser Diode Driver design for all diode packages We design custom drivers compatible with a wide range of laser diode packages, ensuring a perfect match for your specific hardware. Our expertise covers the unique requirements […]
- [Optical System Design](https://ephotonics.com/services/optical-system-design/): Optical System Design and Consulting At ephotonics, we offer custom optical system design service to meet your specific requirements. Whether you need advanced optical system modelling for your whole laser system or component, integrated opto-mechanical design or comprehensive lens testing, our expert team collaborates closely with you to deliver optimal performance. Our main custom optical system design services are given below. Services we offer Optical System Modelling Using advanced simulation tools, ephotonics offers modelling your optical system with precision. Our process evaluates critical parameters ensuring that your system is designed for optimal quality. Whether you need a simple singlet design […]
- [Wavelength to wavenumber converter​](https://ephotonics.com/calculators/wavelength-to-wavenumber/): Wavelength to wavenumber converter Enter a value in either field. The values are inversely related. Standard formula: Wavenumber = 107 / Wavelength (nm). Wavelength nm ⇌ Wavenumber cm⁻¹ Clear Fields ṽ = 10^7 / λ Enter a value to calculate. in Follow us on LinkedIn How it works? Wavelength ((lambda)) represents the distance between wave peaks. Wavenumber ((tilde{nu})) is the inverse: the number of waves that fit into a set distance (usually 1 centimeter). $$ tilde{nu} = frac{1}{lambda_{(text{cm})}} $$ Basic Definition $$ tilde{nu} = frac{10^7}{lambda_{(text{nm})}} $$ From Nanometers Where: (tilde{nu}) : Wavenumber (cm⁻¹). Standard for IR Spectroscopy. (lambda) : Wavelength […]
- [Brewster's Angle Calculator](https://ephotonics.com/calculators/brewsters-angle/): Calculators / Brewster’s Angle Calculator Brewster’s Angle Calculator Brewster Angle · Polarization · Refractive Index Refractive Index 1 (n1) Index Refractive Index 2 (n2) Index Calculate Brewster’s Angle (θB) — Enter values above ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, Brewster window tutorials, and photonics news directly in your feed. Follow on LinkedIn Related Calculators All › Snell’s Law Calculator Compute angles of refraction Fresnel Reflection Calculate P & S reflection power Critical Angle (TIR) Total Internal Reflection threshold Decibel Converter Convert % to Return Loss How the Brewster’s Angle Calculator Works Brewster’s Angle (also known as […]
- [dBm to Watts Calculator](https://ephotonics.com/calculators/dbm-to-watts/): Calculators / dBm to Watts Calculator dBm to Watts Conversion Calculator dBm · Watts · milliwatts Signal Level (dBm) Input or Output dBm — OR — Optical/Electric Power Input or Output mWWµWnWkW Convert Clear Values Conversion Result — Enter a value above ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All OD to Tranmission Convert optical density to tranmission Decibel-Percentage Calculator Translate attenuation into percentage terms Laser Power Density (Fluence) Calculator Use optical power to estimate irradiance Laser Safety Calculator Check exposure impact […]
- [Numerical Aperture Calculator](https://ephotonics.com/calculators/numerical-aperture/): Calculators / Numerical Aperture Calculator Numerical Aperture Calculator Fiber Optics · Refractive Index · Acceptance Angle Core Refractive Index (ncore) Index Cladding Refractive Index (nclad) Index Calculate NA Numerical Aperture (NA) — Enter values above Acceptance Angle (θa) — Max angle for light coupling (in Air) ephotonics linkedin.com/company/ephotonics Follow our page for weekly fiber optic engineering tips, NA optimization guides, and calculator updates. Follow on LinkedIn Related Calculators All › F-Number to NAConvert camera f-stop to NA Mode Field DiameterCompute beam width in SMF Fiber V-NumberNA based mode behavior Snell’s LawBasic refraction physics How the Numerical Aperture Calculator Works The […]
- [Fresnel reflection calculator](https://ephotonics.com/calculators/fresnel-reflection/): Calculators / Fresnel Reflection Calculator Fresnel Reflection Calculator Reflectance · Transmittance · Refractive Index Refractive Index 1 ($n_1$) Index Refractive Index 2 ($n_2$) Index Angle of Incidence ($theta_i$) deg (°) Calculate Refracted Angle ($theta_t$) — Total Internal Reflection! Polarization Reflectance (R) Transmittance (T) S-Pol (Perpendicular) —% —% P-Pol (Parallel) —% —% Average (Unpolarized) —% —% ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Snell’s Law Calculator Compute angles of refraction Brewster’s Angle Find the zero-reflection point Critical Angle (TIR) Total Internal Reflection […]
- [Photon energy calculator](https://ephotonics.com/calculators/photon-energy/): Calculators / Photon Energy Calculator Photon Energy Calculator Photon Energy · Wavelength · Frequency Wavelength (λ) Option A nmpmŵm — OR — Frequency (f) Option B THzGHzMHzkHzHz Calculate Energy Reset Calculator Photon Energy (E) — Joules: — ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Laser Peak Power Convert pulse energy to peak watts Power Density Calculate fluence J/cm² from pulse energy Laser Beam Spot Size Find spot area to compute fluence Laser Safety (NOHD) Check safe distance for pulsed systems How […]
- [Laser Diode Driver Compliance Voltage Estimator](https://ephotonics.com/calculators/laser-diode-driver-compliance-voltage/): Laser Diode Driver Compliance Voltage Calculator Forward Voltage (Vf) From Datasheet Operating Current (Iop) Amps Cable Length Meters (One Way) Wire Gauge AWG 4 AWG (High Power)8 AWG12 AWG16 AWG (Standard)20 AWG24 AWG (Low Power)28 AWG (Ribbon) Min. Driver Compliance Voltage — V — Cable Voltage Drop — Power Lost in Cable (Heat) Warning: High Cable Loss. Your cables are dissipating more than 5 Watts of heat. Consider shortening the cable or using a thicker gauge (lower AWG). Need to power your setup? See High Compliance Laser Diode Drivers → How it works? The “Compliance Voltage” Trap Laser diode drivers […]
- [Wavenumber to Wavelength Converter](https://ephotonics.com/calculators/wavenumber-to-wavelength/): Wavenumber to wavelength converter Enter a wavenumber to find the corresponding wavelength. Standard formula: λ (nm) = 107 / Wavenumber (cm⁻¹). Wavenumber cm⁻¹ ⇌ Wavelength nm Clear Fields λ = 107 / ṽ Enter a value to calculate. in Follow us on LinkedIn How it works? Wavenumber (ṽ) is the inverse of wavelength (λ). It represents how many wave cycles fit into a standard distance (usually 1 centimeter). λ = 1 / ṽ Basic Definition λ (nm) = 107 / ṽ (cm-1) To find Nanometers Where: λ : Wavelength (in Nanometers). ṽ : Wavenumber (in Inverse Centimeters). 107 : Conversion […]
- [V number calculator](https://ephotonics.com/calculators/fiber-v-number/): Calculators / V Number Calculator V Number Calculator Fiber Optics · Normalized Frequency · Cutoff Core Radius (a) µmnm Core Index (ncore) Clad Index (nclad) Operating Wavelength (λ) nmµm Calculate Normalized Frequency (V) — Enter parameters above Cut-off Wavelength (λc) — Single-mode limit (V = 2.405) ephotonics linkedin.com/company/ephotonics Follow us for weekly fiber optic engineering tips, V-number tutorials, and new calculator releases. Follow on LinkedIn Related Calculators All › Mode Field DiameterV-based beam width in SMF Numerical Aperture (NA)Fiber light-gathering power Fiber Splice LossCalculate V-mismatch loss Snell’s LawRefraction physics basics How the Fiber V Number Calculator Works The V Number […]
- [Custom Laser Systems](https://ephotonics.com/services/custom-laser-systems/): Custom Laser System Design and production ephotonics offers custom lasers designed for your specific needs, whether fiber or solid-state architecture operating in infrared region. We collaborate closely with you to deliver optimal performance, ensuring the laser system perfectly aligns with your requirements. Our experience goes beyond building fiber lasers, we also specialize in solid-state lasers and fiber laser amplifiers across a range of wavelengths. Whether you’re looking to prototype an idea or develop a durable industrial product for harsh environments, we are dedicated to turning your vision into reality with precision and reliability. Pulsed and CW laser systems From femtosecond […]
- [Decibel to percentage converter](https://ephotonics.com/calculators/decibel-to-percentage/): Calculators / Decibel to Percentage Decibel to Percentage Converter Decibels (dB) · Percentage (%) · Linear Ratio · Power Loss Enter a value in either field below to convert instantly. For attenuation (loss), ensure you add a minus (-) sign to the dB value. Attenuation / Gain dB ⇌ Transmission % Clear Fields P(%) = 100 × 10^(dB/10) Ready to calculate. in Follow us on LinkedIn ephotonics linkedin.com/company/ephotonics Follow our page for weekly engineering guides, signal conversion tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All dBm to Watts Convert absolute power levels OD […]
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- [Mode field diameter calculator](https://ephotonics.com/calculators/mode-field-diameter/): Calculators / Mode Field Diameter Calculator Mode Field Diameter Calculator Single-Mode Fiber · Marcuse Equation · V-Number Fiber Core Radius (a) µmnm Numerical Aperture (NA) Unitless Wavelength (λ) nmµm Calculate MFD Mode Field Diameter (MFD) — Enter values to calculate ephotonics linkedin.com/company/ephotonics Follow us for weekly fiber optic guides, MFD optimization tips, and photonics tools directly in your feed. Follow on LinkedIn Related Calculators All › Fiber V-Number Determine fiber mode behavior Fiber Splice Loss MFD mismatch & alignment loss Numerical Aperture (NA) Fiber light-gathering power Critical Angle (TIR) TIR threshold for core/cladding How the Mode Field Diameter Calculator Works […]
- [Snell's Law Calculator](https://ephotonics.com/calculators/snells-law/): Calculators / Snell’s Law Calculator Snell’s Law Calculator Refraction Angle · Refractive Index · Critical Angle Enter any 3 values to calculate the 4th. Incident Refractive Index (n1) Index Incident Angle (θ1) deg (°) Refracted Refractive Index (n2) Index Refracted Angle (θ2) deg (°) Calculate Result — ephotonics linkedin.com/company/ephotonics Follow our page for weekly laser engineering guides, photonics tutorials, and new calculator releases directly in your feed. Follow on LinkedIn Related Calculators All Fresnel Reflection Reflection loss at the same refractive interface Thin Lens Equation Refractive index drives focal length via lensmaker eq. Laser Beam Spot Size Refraction at interfaces […]
- [Photonics Calculators](https://ephotonics.com/calculators/): Photonics Calculators Resources Essential tools for optical engineers, researchers, and students. Streamline your design process with our comprehensive suite of photonics and laser calculators. Whether you are designing laser systems, analyzing fiber optic parameters, or performing unit conversions, these tools provide instant, precise computations to support your lab work and research. Laser Physics Fiber Optics Spectroscopy Telecom Laser Engineering & Pulsed Systems Laser Pulse Energy Calculate Joules per pulse from average power and rep rate. Laser Peak Power Determine peak power based on pulse energy and width. Duty Cycle Calculator Calculate the ratio of active time to total period for […]
- [Laser peak power calculator](https://ephotonics.com/calculators/laser-peak-power/): Calculators / Laser Peak Power Calculator Laser Peak Power Calculator Pulse Energy · Peak Intensity · Gaussian Correction Calculate laser peak power and laser pulse energy. Select your pulse shape then the correction factor is applied automatically. Avg. Power (Pavg) WmWµWkW Pulse Duration (τFWHM) nspsfsµsms Repetition Rate (frep) HzkHzMHzGHz Pulse Shape — correction factor (K) Top Hat(Rectangular) K = 1.000 Gaussian(Real-world) K = 0.9394 Sech²(Mode-locked) K = 0.8826 Peak Power — Max. instantaneous power Pulse Energy — Energy per single pulse * Ppeak = (Pavg / frep × τ) × K  ·  Full derivation → Reset ephotonics linkedin.com/company/ephotonics Follow our […]
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- [Photonics Solutions for Your Laser Systems](https://ephotonics.com/): Laser Diode Drivers · Diodes · Custom Electronics Source for premium photonics solutions Ultra-compact laser diode drivers, laser electronics solutions and high-power laser diodes for your industrial or scientific applications. View All Products → LASER DIODE DRIVERS LASER DIODES LASER ELECTRONICS OPTICAL DESIGN ephotonics specializes in laser diode drivers for various power levels, high-performance laser diodes and custom optical design serving both industrial and scientific sectors.  Our product range includes reliable solutions and custom-designed options to meet specific laser application needs. Our experience in laser technology and electronics ensures proficiency and a focused approach to meet your requirements effectively. Ready to […]

## Products

- [808 nm 3 kW Vertical Laser Diode Stack](https://ephotonics.com/product/808nm-3000w-vertical-laser-diode-stack/): • 20 bars at 808 nm Wavelength • 3000W QCW – 5 ms 20 Hz 10% DC • 3000W QCW – 20ms 5 Hz 10% DC • 1200W QCW – 100ms 2 Hz 20% DC • Compact Design • Macrochannel Cooling • Glass Protection Cover
- [940 nm 600 W Horizantal Laser Diode Stack](https://ephotonics.com/product/940nm-600w-laser-diode-stack/): •High CW Output Power (600W) •Efficient Microchannel Cooling •Fast Axis Collimation (FAC) Included •High Reliability & Long Lifetime •Compact Horizantal Array
- [806 nm 360 W Microchannel Cooled Vertical Laser Diode Stack](https://ephotonics.com/product/806nm-360w-laser-diode-stack/): •High CW Optical Power of 360 Watts •806nm Pumping Wavelength •Efficient Microchannel Water Cooling •Low Smile (<5µm) for High-Quality Beams •Hard Solder (AuSn) Packaging for High Reliability •Optional Fast Axis Collimation (FAC)
- [TEC Temperature Controller - Peltier Driver TCW-1525](https://ephotonics.com/product/tcw-1525-tec-controller/)
- [793 nm 16 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-16w-fiber-coupled-laser-diode/): • 16W CW Power Output • Low Operating Voltage • 3nm FWHM Spectral Width • 30 dB Feedback Isolation • Customized Fiber Termination • Optional Thermistor
- [793 nm 30 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-30w-fiber-coupled-laser-diode/): • 30W CW Power Output • High Efficiency • 3nm FWHM Spectral Width • 30 dB Feedback Isolation • Customized Fiber Termination • 105μm Core / 0.22 NA
- [793 nm 180 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-180w-fiber-coupled-laser-diode/): • 180W CW Power Output • 19 W/A Slope Efficiency • 4nm FWHM Spectral Width • 30 dB Feedback Isolation • Customized Fiber Termination • 90% Spot Ratio at 0.15/0.22 NA
- [793 nm 4 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-4w-fiber-coupled-laser-diode/): • 4W CW Power Output • Low Operating Voltage • ±3nm Wavelength Tolerance • 30 dB Feedback Isolation • Customized Fiber Termination • 90% Spot Ratio at 0.15/0.22 NA
- [808 nm 4 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-4w-fiber-coupled-laser-diode/): • 4W CW Power Output • Low Operating Voltage • ±3nm Wavelength Tolerance • 30 dB Feedback Isolation • Customized Fiber Termination • Rugged Design
- [808 nm 40 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-40w-fiber-coupled-laser-diode/): • High Power Output • Tight ±3nm Wavelength Tolerance • High Efficiency • 30 dB Feedback Isolation • Customized Fiber Termination • Rugged Design
- [808 nm 50 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-50w-fiber-coupled-laser-diode/): • High Power Output • Tight ±3nm Wavelength Tolerance • High Efficiency • 30 dB Feedback Isolation • Customized Fiber Termination • Rugged Design
- [808 nm 60 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-60w-fiber-coupled-laser-diode/): • High Power Output • Tight ±3nm Wavelength Tolerance • High Efficiency • 30 dB Feedback Isolation • Photodiode Power Monitor • Customized Fiber Termination • Rugged Design
- [808 nm 8 W Multi-Function Fiber-Coupled Diode Laser](https://ephotonics.com/product/808nm-8w-multifunction-fiber-coupled-laser-diode/): • Integrated TEC • 635 nm Aiming Beam • SMA905 Termination • Photodiode Power Monitor • Customized Fiber Termination • Rugged Design • Thermistor
- [808 nm 20 W High-Power Fiber Coupled Laer Diode](https://ephotonics.com/product/808nm-20w-fiber-coupled-laser-diode/): • High Power Output • Stainless-Steel Fiber Tubing • SMA905 Termination • Wide Operating Temperature • Customized Fiber Termination • Rugged Design
- [830nm 600mW Wavelength-Stabilized TEC Fiber Coupled Laser Diode](https://ephotonics.com/product/830nm-600mw-wavelength-stabilized-fiber-coupled-laser-diode/): • 0.1nm Spectral Width (FWHM) • Integrated TEC • Built-in Thermistor & PD Monitor • Butterfly Package • Customized Fiber Termination • Rugged Design
- [878.6nm 20W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878nm-20w-wavelength-stabilized-fiber-laser-diode/): • Wavelength Stabilization (0.5nm FWHM) • Optional Thermistors • 30 dB Feedback Isolation • High-Brightness (105μm Core) • Customized Fiber Termination • Rugged Design
- [915 nm 30 W Fiber-Coupled Laser Diode](https://ephotonics.com/product/915nm-30w-fiber-coupled-laser-diode/): • High Output Power • 50% Electrical-to-Optical Efficiency • 30 dB Feedback Isolation • High-Brightness (105μm Core) • Customized fiber termination • Rugged Design
- [915 nm 160 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/915nm-160w-fiber-coupled-laser-diode/): • High-Power Output • 50% Electrical-to-Optical Efficiency • 30 dB Feedback Isolation • High-Brightness • Customized fiber termination • Rugged Design
- [915 nm 300 W High-Power Fiber-Coupled Laser Diode](https://ephotonics.com/product/915nm-300w-fiber-coupled-laser-diode/): • High-Power Output • 50% Electrical-to-Optical Efficiency • 30 dB Feedback Isolation • High-Brightness • Customized fiber termination • Rugged Design
- [940 nm 30 W Fiber-Coupled Laser Diode](https://ephotonics.com/product/940nm-30w-fiber-coupled-laser-diode/): • High-Power Output • 52% Electrical-to-Optical Efficiency • 1400–1600nm Feedback Isolation • High-Brightness (105μm) • Thermistor • Rugged Design
- [940 nm 70 W Fiber Coupled Laser Diode](https://ephotonics.com/product/940nm-70w-fiber-coupled-laser-diode/): • High-Power Output • 52% Electrical-to-Optical Efficiency • 1400–1600nm Feedback Isolation • High-Brightness (105μm) • Thermistor & PD Monitor • Rugged Design
- [940 nm 150 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/940nm-150w-fiber-coupled-laser-diode/): • High-Power Output • 50% Electrical-to-Optical Efficiency • Feedback Protection (30 dB) • High-Brightness (106.5μm) • Customizable Fiber & Isolation Range • Rugged Design
- [940 nm 200 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/940nm-200w-fiber-coupled-laser-diode/): • High-Power Output • 48% Electrical-to-Optical Efficiency • Feedback Protection (30 dB) • 100,000 Hour MTTF Lifetime • Customizable Fiber & Isolation Range • Rugged Design
- [976 nm 50 W Wavelengt-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-50w-fiber-laser-diode/): • Wavelength-Locked • Extreme High Brightness • Feedback Protection (30 dB) • 100,000 Hour MTTF Lifetime • Built-in Thermistor • Photodiode Monitor • Rugged Design
- [976 nm 70 W Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-70w-fiber-coupled-laser-diode/): • High-Power Output • 48% Electrical-to-Optical Efficiency • Feedback Protection (30 dB) • Wide Operating Temperature Range • Fiber Delivery • Rugged Design
- [976 nm 180 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976-nm-180w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Power Output • Wavelength Stabilized (±1nm) • Ultra-Low Wavelength Drift • Feedback Protection (30 dB) • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 200W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-200w-fiber-coupled-laser-diode/): • High-Power Output • 48% Electrical-to-Optical Efficiency • Feedback Protection (30 dB) • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 460 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-460w-fiber-coupled-laser-diode/): • High-Power Output • Precise Wavelength (±3nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 510 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-510w-fiber-coupled-laser-diode/): • High-Power Output • Precise Wavelength (±3nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 600 W High-Power Fiber Laser Diode](https://ephotonics.com/product/976nm-600w-fiber-coupled-laser-diode/): • High-Power Output • Precise Wavelength (±1nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 700 W High-Power Fiber Laser Diode](https://ephotonics.com/product/976nm-700w-fiber-coupled-laser-diode/): • Kilowatt-Class Output • Precise Wavelength (±3nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 900 W Wavelength-Stabilized Fiber-Coupled Laser Diode](https://ephotonics.com/product/976nm-900w-fiber-coupled-laser-diode/): • High-Power Output • Locked Wavelength (±1nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [976 nm 1000 W High-Power Fiber Laser Diode](https://ephotonics.com/product/976nm-1000w-fiber-laser-diode/): • Kilowatt-Class Output • Precise Wavelength (±3nm) • Feedback Protection • High Efficiency • Fiber Delivery • Rugged Design
- [980 nm 30 W Fiber Coupled Laser Diode](https://ephotonics.com/product/980nm-30w-fiber-coupled-laser-diode/): • High Power Output • Detachable Fiber Output • Aiming Beam (635 nm) • Multi-function monitoring • Integrated Sensing Options • Rugged Design
- [1064 nm 15 W Fiber Coupled Laser Diode - Detachable](https://ephotonics.com/product/1064nm-15w-fiber-coupled-laser-diode/): • High Power Output • Detachable Design • Aiming Beam • Thermally Robust Housing • Integrated Sensing Options • Rugged Design
- [405 nm 160 mW Fiber Coupled Laser Diode](https://ephotonics.com/product/405nm-160mw-fiber-coupled-laser-diode/): • Ultra-Narrow 40 µm Fiber Core • Visible 405 nm Violet Output • Industrial Package • Thermally Robust Housing • High Spectral Consistency • Industrial FC-Ferrule Termination
- [405 nm 30 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/405nm-30w-high-power-fiber-coupled-laser-diode/): • 405 nm 30 W Output • Advanced Multi-Module Stability • Pluggable SMA905 • Integrated Water-Cooling • Internal Thermal Monitoring
- [445 nm 4 W Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-4w-fiber-coupled-blue-laser-diode/): • 445 nm Blue Output • Reliable 4 W CW Performance • Narrow 105 µm Fiber Core • Industrial Standard Configuration • Advanced Thermal Management
- [445 nm 250 W High-Power Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-250w-high-power-fiber-coupled-blue-laser-diode/): • High-Brightness 445 nm Blue Output • Industrial 250 W Total Output • 0.15 Numerical Aperture • Narrow 105 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination • Advanced Thermal Management
- [445 nm 50 W Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-50w-fiber-coupled-blue-laser-diode/): • High-Brightness 445 nm Blue Output • Dual-Submodule • 0.15 Numerical Aperture • High-Brightness 113 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination • Advanced Thermal Management
- [445 nm 75 W High-Power Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-75w-high-power-fiber-coupled-blue-laser-diode/): • 445 nm Blue Output • Ultra-high 75 W Power • High-Brightness 105 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination • Advanced Thermal Management
- [445 nm 100 W High-Power Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-100w-high-power-fiber-coupled-blue-laser-diode/): • 445 nm Blue Output • Ultra-high 100 W Power • High-Brightness 105 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination
- [445 nm 150 W High-Power Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-150w-high-power-fiber-coupled-blue-laser-diode/): • 445 nm Blue Output • Ultra-high 150 W Power • High-Brightness 105 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination
- [445 nm 200 W High-Power Fiber-Coupled Blue Laser Diode](https://ephotonics.com/product/445nm-200w-high-power-fiber-coupled-blue-laser-diode/): • 445 nm Blue Output • Ultra-high 200 W Power • High-Brightness 105 µm Fiber Core • Integrated Visible Aiming Beam • High-Power HP-SMA905 Termination
- [520 nm 1 W Visible Green Fiber-Coupled Laser Diode](https://ephotonics.com/product/520nm-1w-green-fiber-coupled-laser-diode/): • High-Brightness 520 nm Green Output • Up to 1 W Output Power • High-Brightness 105 µm Fiber Core • Rugged Ferrule Termination • Spectral Consistency
- [635 nm 5 W Visible Red Fiber-Coupled Laser Diode](https://ephotonics.com/product/635nm-5w-red-fiber-coupled-laser-diode/): • High-Output 5 W Visible Red Emission • High-Brightness 105 µm Fiber Core • Integrated Power & Thermal Monitoring • Rugged Ferrule Termination • Clinical Stability • Integrated 10 kΩ Thermistor
- [785 nm 600 mW Wavelength-Stabilized Fiber-Coupled Laser Diode](https://ephotonics.com/product/785nm-600mw-wavelength-stabilized-fiber-coupled-laser-diode/): • Ultra-Narrow Spectral Linewidth (< 0.1 nm) • Wavelength Stabilization (± 0.5 nm) • Integrated TEC Cooling • 105 µm Fiber Core for High Brightness • High Spectral Consistency (0.01 nm/°C) • Integrated 10 kΩ Thermistor Protection
- [793 nm 8 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-8w-fiber-coupled-laser-diode/): • High-Brightness 8 W Output • 2 µm Feedback Protection • High-Brightness 105 µm Core • 45% Electrical Efficiency • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 22 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-22w-fiber-coupled-laser-diode/): • High-Brightness 22 W Output • 2 µm Feedback Protection • High-Brightness 105 µm Core • 45% Electrical Efficiency • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 50 W High-Power Fiber-Coupled Laser Diode](https://ephotonics.com/product/793nm-50w-fiber-coupled-laser-diode/): • 793 nm wavelength • High-Intensity 50 W Output • 2 µm Feedback Protection • High-Brightness 200 µm Fiber Core • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 80 W Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-80w-fiber-coupled-laser-diode/): • High-Intensity 80 W Output • 2 µm Feedback Protection • 200 µm Fiber Core • High-Brightness 200 µm Fiber Core • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 130 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-130w-high-power-fiber-coupled-laser-diode/): • High-Intensity 130 W Output • 2 µm Feedback Protection • Narrow 105 µm Fiber Core • High-Brightness 200 µm Fiber Core • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 160 W High-Power Fiber Coupled Laser Diode](https://ephotonics.com/product/793nm-160w-high-power-fiber-coupled-laser-diode/): • High-Intensity 260 W Output • 2 µm Feedback Protection • Narrow 135 µm Fiber Core • High-Brightness 200 µm Fiber Core • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [793 nm 260 W High-Power Fiber-Coupled Laser Diode](https://ephotonics.com/product/793nm-260w-high-power-fiber-coupled-laser-diode/): • High-Intensity 260 W Output • 2 µm Feedback Protection • High-Brightness 200 µm Fiber Core • Standard FC-Ferrule Termination • Rugged and Compact Industrial Footprint
- [808 nm 8 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-8w-fiber-coupled-laser-diode/): • High-Intensity 8 W CW Output • Integrated 30 dB Feedback Protection • Narrow 105 µm Fiber Core • 46% Wall-Plug Efficiency • Rugged and Compact Industrial Footprint
- [808 nm 25 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-25w-fiber-coupled-laser-diode/): • High-Intensity 25 W CW Output • Integrated Thermistor • Integrated 30 dB Feedback Protection • Flexible 105/200/400 µm Core Selection • 44% Wall-Plug Efficiency • Rugged and Compact Industrial Footprint
- [808 nm 30 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-30w-fiber-coupled-laser-diode/): • High-Intensity 30 W CW Output • Industry-Standard Pump Wavelength • Integrated 30 dB Feedback Protection • Flexible 200/400 µm Fiber Interface • 45% Wall-Plug Efficiency • Rugged and Compact Industrial Footprint
- [808 nm 70 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-70w-fiber-coupled-laser-diode/): • High-Intensity 70 W CW Output • Industry-Standard Pump Wavelength • Integrated 30 dB Feedback Protection • Narrow 105 µm Fiber Core • 45% Wall-Plug Efficiency • Rugged and Compact Industrial Footprint
- [808 nm 150 W Fiber Coupled Laser Diode](https://ephotonics.com/product/808nm-150w-fiber-coupled-laser-diode/): • High-Intensity 150 W CW Output • Industry-Standard Pump Wavelength • Integrated 30 dB Feedback Protection • Flexible 200/400 µm Fiber Interface • 42% Wall-Plug Efficiency • Rugged and Compact Industrial Footprint
- [830 nm 1 W Fiber Coupled Laser Diode](https://ephotonics.com/product/830nm-1w-fiber-coupled-laser-diode/): • Ultra-Narrow 50 µm Fiber Core • Efficient 830 nm Infrared Output • Low 0.14 Numerical Aperture (NA) • Integrated ST Fiber Termination • Stable 40% Electrical-to-Optical Conversion • Rugged and Compact Industrial Footprint
- [830 nm 2 W Fiber Coupled Laser Diode](https://ephotonics.com/product/830nm-2w-fiber-coupled-laser-diode/): • Ultra-Narrow 50 µm Fiber Core • Efficient 830 nm Infrared Output • Low 0.14 Numerical Aperture (NA) • Integrated ST Fiber Termination • Stable 40% Electrical-to-Optical Conversion • Rugged and Compact Industrial Footprint
- [878 nm 30 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878-30w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 30 W Output • VBG Wavelength Locking (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • SMA905 or Fiber Termination • Rugged Industrial Package
- [878 nm 65 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878nm-65w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 65 W Output • VBG Wavelength Locking (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • SMA905 or Fiber Termination • Rugged Industrial Package
- [878 nm 90 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878nm-90w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 90 W Output • VBG Wavelength Stabilization (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • SMA905 or Fiber Termination • Rugged Industrial Package
- [878 nm 120 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878nm-120w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 120 W Output • VBG Wavelength Stabilization (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • SMA905 or Fiber Termination • Rugged Industrial Package
- [878 nm 170 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/878nm-170w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 170 W Output • VBG Wavelength Stabilization (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • SMA-905 or Fiber Termination • Rugged Industrial Package
- [888 nm 120 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/888nm-120w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 120 W Output • VBG Wavelength Stabilization (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • High-Power SMA905 Termination • Rugged Industrial Package
- [888 nm 170 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/888nm-170w-wavelength-stabilized-fiber-coupled-laser-diode/): • High-Intensity 170 W Output • VBG Wavelength Stabilization (± 1 nm) • Narrow Spectral Width (0.5 nm) • Integrated 30 dB Feedback Protection • High-Power SMA905 Termination • Rugged Industrial Package
- [915 nm 12 W Fiber Coupled Laser Diode](https://ephotonics.com/product/915nm-12w-fiber-coupled-laser-diode/): • High-Intensity 12 W Output • Superior High-Brightness 105 µm Core • High NA Ratio (90/95%) • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [915 nm 40 W Fiber Coupled Laser Diode](https://ephotonics.com/product/915nm-40w-fiber-coupled-laser-diode/): • High-Intensity 40 W Output • Superior High-Brightness 105 µm Core • High NA Ratio (90/95%) • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [915 nm 250 W High-Power Fiber-Coupled Laser Diode](https://ephotonics.com/product/915nm-250w-fiber-coupled-laser-diode/): • High-Intensity 250 W Output • Superior High-Brightness 135 µm Core • High NA Ratio (90/95%) • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [940 nm 10 W Fiber Coupled Laser Diode](https://ephotonics.com/product/940nm-10w-fiber-coupled-laser-diode/): • Superior 52% Electrical Efficiency • Tighter ±5 nm Wavelength Tolerance • High Stability Output • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [940 nm 20 W Fiber Coupled Laser Diode](https://ephotonics.com/product/940nm-20w-fiber-coupled-laser-diode/): • Superior 52% Electrical Efficiency • Thermal Management Ready • High Stability Output • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [969 nm 140 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/969nm-140w-wavelength-stabilized-fiber-coupled-laser-diode/): • Wavelength Stabilized (± 1 nm) • Advanced Thermal Tracking • Superior Electrical Efficiency • Integrated 30 dB Feedback Protection • Ultra-High Brightness 105 µm Core • Rugged Industrial Package
- [976 nm 3 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-3w-wavelength-stabilized-fiber-coupled-laser-diode/): • High Intensity 3 W Output • Narrow-Band VBG Stabilization (± 0.5 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Industrial FC-Ferrule Termination • Rugged Industrial Package
- [976 nm 9 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-9w-wavelength-stabilized-fiber-coupled-laser-diode/): • High Intensity 9 W Output • Narrow-Band VBG Stabilization (± 0.5 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Industrial FC-Ferrule Termination • Rugged Industrial Package
- [976 nm 18 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-18w-wavelength-stabilized-fiber-coupled-laser-diode/): • High Intensity 18 W Output • Narrow-Band VBG Stabilization (± 0.5 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Industrial FC-Ferrule Termination • Rugged Industrial Package
- [976 nm 27 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-27w-wavelength-stabilized-fiber-coupled-laser-diode/): • High Intensity 27 W Output • Narrow-Band VBG Stabilization (± 0.5 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Industrial FC-Ferrule Termination • Rugged Industrial Package
- [976 nm 60 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-60w-wavelength-stabilized-fiber-coupled-laser-diode/): • High Intensity 60 W Output • Narrow-Band VBG Stabilization (± 0.5 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Industrial FC-Ferrule Termination • Rugged Industrial Package
- [976 nm 140 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-140w-wavelength-stabilized-fiber-coupled-laser-diode/): • Ultra-High 140 W Output • Narrow-Band VBG Stabilization (± 1 nm) • Superior 50% Electrical Efficiency • 1020nm~1200nm feedback protection • High-Brightness Output • Rugged Industrial Package
- [976 nm 200 W Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-200w-plugable-fiber-coupled-laser-diode/): • Ultra-High 200 W Output • Pluggable SMA905 Fiber ARchitecture • Superior 50% Electrical Efficiency • Visible 635 nm Red Aiming Beam • High-Brightness Output • Rugged Industrial Package
- [976 nm 260 W Wavelength Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-260w-wavelength-stabilized-fiber-coupled-laser-diode/): • Ultra-High 260 W Output • Integrated 30 dB Feedback Protection • Superior 50% Electrical Efficiency • Visible 635 nm Red Aiming Beam • High-Brightness Output • Robust FC-Ferrule Termination • Rugged Industrial Package      
- [976 nm 300 W Fiber Coupled Laser Diode](https://ephotonics.com/product/976nm-300w-fiber-coupled-laser-diode/): • Ultra-High 300 W Output • Pluggable SMA905 Fiber Architecture • Visible 635 nm Red Aiming Beam • High-Brightness Output • Superior 50% Wall-Plug Efficienc • Rugged Industrial Package    
- [976 nm 430 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/976-nm-430-w-wavelength-stabilized-fiber-coupled-laser-diode/): • Ultra-High 430 W Output • VBG Wavelength Locking (976 ± 1 nm) • Integrated 30 dB Feedback Isolation • 1020nm~1200nm feedback protection • High-Brightness Output • Rugged Industrial Package    
- [976 nm 530 W Wavelength Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/980nm-530w-wavelength-stabilized-fiber-coupled-laser-diode/): • Ultra-High 430 W Output • VBG Wavelength Locking (976 ± 1 nm) • Integrated 30 dB Feedback Isolation • 1020nm~1200nm feedback protection • High-Brightness Output • Rugged Industrial Package    
- [980 nm 10 W Multi-Function Detachable Fiber Coupled Laser Diode](https://ephotonics.com/product/980nm-10w-detachable-fiber-coupled-laser-diode/): • High-Brightness Output • Built-in Monitor Photodiode • Visible 635 nm Red Aiming Beam • 48% Conversion Efficiency • Detachable SMA905 Fiber Connector • Rugged Industrial Package
- [980 nm / 1470 nm Dual-Wavelength Fiber Coupled Laser Diode](https://ephotonics.com/product/980nm-30w-1470nm-15w-dual-wavelength-laser-diode/): • Dual-Wavelength (980nm + 1470nm) • High-Brightness Fiber Core • Precision Monitor Photodiode • Visible 635 nm Red Aiming Beam • Detachable SMA905 Fiber Architecture • Replacable Windows Panels • Rugged Industrial Package
- [980 nm 10 W TEC-integrated Fiber Coupled Laser Diode](https://ephotonics.com/product/980nm-10w-tec-fiber-coupled-laser-diode/): • Integrated Thermo-Electric Cooler (TEC) • High-Brightness Output • Precision Monitor Photodiode • High-Brightness Fiber Core • Visible 635 nm Red Aiming Beam • Superior 48% Electrical Efficiency: • Rugged Industrial Package
- [981 nm 140 W Wavelength-Stabilized Fiber Coupled Laser Diode](https://ephotonics.com/product/981nm-140w-fiber-coupled-laser-diode/): • Wavelength Stabilized ± 1 nm • High-Brightness Output • 105 µm High-Brightness Fiber Core • Integrated Feedback Isolation (30 dB) • 45% Electrical-to-Optical Efficiency • Rugged Industrial Package
- [1064 nm 20 W Fiber Coupled Laser Diode](https://ephotonics.com/product/1064nm-20w-fiber-coupled-laser-diode/): • Multi-Function Detachable Diode Laser • Superior 50% Electrical Efficiency • 200 µm High-Brightness Fiber Core • Visible 635 nm Red Aiming Beam • Detachable Design with SMA905 Connector • Designed for long life-time operation
- [1470 nm 15 W Fiber Coupled Laser Diode](https://ephotonics.com/product/1470nm-15w-fiber-coupled-laser-diode/): • Multi-Function Detachable Diode Laser • 400 µm multimode fiber, NA=0.22 • SMA905 fiber connector • Feedback isolation • Thermistor and aiming beam • Designed for long life-time operation
- [1940 nm 6 W Fiber Coupled Laser Diode](https://ephotonics.com/product/1940nm-6w-fiber-coupled-laser-diode/): • Multi-Function Detachable Diode Laser • 400 µm multimode fiber, NA=0.22 • SMA905 fiber connector • Feedback isolation • Thermistor and aiming beam • Designed for long life-time operation
- [16A-100V Laser Diode Driver - LDD16100](https://ephotonics.com/product/16a-100v-laser-diode-driver-ldd16100/): Laser Diode driver
- [Laser Diode Driver 10A 30V - LDD1030](https://ephotonics.com/product/10a-30v-laser-diode-driver-ldd1030/)
- [10A-60V Laser Diode Driver - LDD1060](https://ephotonics.com/product/10a-60v-laser-diode-driver-ldd1060/): Laser diode driver for high power laser diode operations up to 10 Amper and 60 Volt, A total of 600 W.

## Optional

- [Agent (MCP protocol)](websites-agents.hostinger.com/ephotonics.com/mcp)

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