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Photonics Calculators
Resources
Laser Safety (NOHD)
Calculate Nominal Ocular Hazard Distance for safety compliance.
Diode Temperature Tuning
Determine temperature setpoints of diode for precise wavelength control.
Laser Diode Lifetime
Estimate reliability and MTBF using the Arrhenius model.
Laser Spot Size
Calculate focused spot size based on beam diameter and lens.
Laser Beam Expander
Calculate magnification and divergence reduction.
Coherence Length
Determine temporal coherence from spectral linewidth.
Laser Peak Power
Determine peak power from pulse width and average power.
Pulse Energy Calculator
Calculate Joules per pulse from average power and rep rate.
Laser Power Density (Fluence)
Calculate W/cm² or J/cm² for material processing.
Gaussian Beam Divergence
Find the far-field expansion angle of a laser beam.
Free Spectral Range (FSR)
Determine frequency spacing for cavities and etalons.
Laser Heat Transfer
Estimate thermal effects from laser-material interaction.
Snell's Law Calculator
Calculate refraction angles and critical angles.
Thin Lens Equation
Solve for image distance, focal length, and magnification.
Lens Thickness
Calculate center and edge thickness for lenses.
Critical Angle (TIR)
Find the angle for Total Internal Reflection.
Diffraction Grating
Calculate diffraction angles for various groove densities.
Fresnel Reflection
Reflectivity losses at air-glass interfaces.
Brewster's Angle
Find the perfect polarization transmission angle.
Mode Field Diameter (MFD)
Compute beam width inside single-mode optical fibers.
Numerical Aperture (NA)
Calculate NA from core/clad refractive indices.
F-Number (f/#) to NA
Convert between camera Lens f-stop and Numerical Aperture.
V Number Calculator
Determine Single-mode or Multi-mode fiber operation.
Fiber Splice Loss
Estimate insertion loss at fiber splices or connectors.
OD to Transmission
Convert between Optical Density (OD) and Transmission %.
Frequency ↔ Wavelength
Convert between Hz and nm easily.
Photon Energy Calculator
Energy in eV/Joules from wavelength or frequency.
dBm to Watts Calculator
Signal strength conversion (dBm to W).
Decibel-Percentage
Convert decibel loss/gain to percentage values.
Angstrom to Nanometer
Unit conversion for atomic scale lengths.
Wavelength to Wavenumber
Convert vacuum wavelength (nm) to cm⁻¹.
Wavenumber to Wavelength
Convert wavenumber (cm⁻¹) back to nanometers.
dBm to Voltage
Convert RF/optical power in dBm to RMS voltage.
