635 nm 5 W Visible Red Fiber-Coupled Laser Diode

WAVELENGTH

635 nm

POWER

5 W

FIBER CORE

105 µm

NA

0.22

Key features

• 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

Applications

• Medical Surgery & Therapy
• High-Power Aiming Systems
• Medical Diagnostics
• Scientific Research
• Illumination & Sensing

Custom configurations & wavelengths available

Uncompromising performance

The 635 nm 5 W Fiber Coupled Diode Laser is a high-brightness visible red light source engineered for demanding medical, industrial, and scientific applications. Delivering a potent 5 W of continuous-wave output through a precision 105 µm core, this module provides exceptional visibility and energy density for high-end technical integration. Designed for mission-critical reliability, the K635 series features an integrated monitor photodiode (PD) for real-time power tracking and a built-in 10 kΩ thermistor for precise thermal management. With its concentrated red beam and industrial Ferrule termination, it is the premier choice for photodynamic therapy (PDT), high-power aiming in complex laser systems, and advanced biophotonics research requiring a stable, high-intensity visible source.

SPECIFICATIONS ( 25°C )SYMBOLUNITK635FA5FN-5.000W
MINIMUMTYPICALMAXIMUM
OPTICAL
DATA(1)
CW Output PowerPoW5——
Center Wavelengthλcnm635 ± 10
Spectral Width (FWHM)Δλnm—23
Wavelength Shift / TempΔλ/ΔTnm/°C—0.2—
ELECTRICAL
DATA
Electrical-to-Optical EfficiencyPE%—20—
Threshold CurrentIthA—0.5—
Operating CurrentIopA—1.51.6
Operating VoltageVopV—14.515
Slope EfficiencyηW/A—5—
FIBER
DATA
Core DiameterDcoreμm—105—
Cladding DiameterDcladμm—125—
Numeric ApertureNA——0.22—
Fiber LengthLfm—1.0—
Fiber TerminationFerrule
MONITORThermistor (Resistance)RtK Ω10 ± 3%
PDMonitor CurrentPDμA50—600
OTHERSESDVesdV——500
Storage Temperature(2)Tst°C-20—70
Operating Case Temp(3)Ttop°C15—35
Relative HumidityRH%15—75

Do you need a custom laser diode for your application?

We offer custom laser diodes according to your needs, either high-power or low-power versions, fiber-coupled or free-space, specific wavelengths, wavelength-stabilized options, and single or multi-emitter diodes. To discuss your custom laser diode needs, you can contact us by sending an email or using the contact form.

contact@ephotonics.com

+1 418 883 7125

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