635nm 5W Fiber Coupled Semiconductor Laser (K635FA5FN-5.000W)
The K635FA5FN-5.000W is a 635nm 5W fiber-coupled semiconductor laser module from BWT. It delivers a minimum of 5W output power from a 105μm core, 0.22NA multimode fiber with a 2m fiber length and a 0.9mm protective jacket, terminated with an FF bare ferrule or SMA905 connector. The module operates at a typical current of 1.5A and a typical voltage of 14.5V, with a typical electro-optical efficiency of 20% and a slope efficiency of 5W/A. A 10kΩ±3% thermistor and a monitor photodiode (PD, 50~600μA) are integrated for real-time temperature sensing and output power monitoring. Housed in a compact gold-plated 6-pin package with mounting flanges, the laser is designed for stable operation at 15~35°C with proper heat dissipation, and is widely used in indication/pointing light, medical and scientific research applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Output Power Po (W) | ≥5W |
| Center Wavelength λc (nm) | 635±10nm |
| Temperature Drift Coefficient Δλ/ΔT (nm/°C) | 0.3 |
| Electro-Optical Efficiency PE (%) | 20% |
| Threshold Current Ith (A) | 0.5A |
| Operating Current Iop (A) | 1.5(Typ.)/1.6(Max.) |
| Operating Voltage Vop (V) | 14.5(Typ.)/15(Max.) |
| Slope Efficiency η (W/A) | 5W/A |
| Fiber Core Diameter Dcore (μm) | 105μm |
| Cladding Diameter Dclad (μm) | 125μm |
| Numerical Aperture NA | 0.22 |
| Fiber Length Lf (m) | 2m |
| Fiber Jacket (mm) | 0.9mm |
| Bending Radius (mm) | ≥50mm |
| Fiber Connector | FF bare ferrule / SMA905 |
| Monitor Photodiode Current Imo (μA) | 50~600μA |
| Thermistor Resistance Rt (kΩ) | 10±3% |
| ESD Vesd (V) | ≤500V |
| Storage Temperature Tst (°C) | -20~+70°C |
| Soldering Temperature Tls (°C) | ≤260°C |
| Soldering Time t (sec) | ≤10 |
| Operating Temperature Top (°C) | 15~35°C |
| Pin 1 | Laser (+) |
| Pin 2 | Laser (-) |
| Pin 3 | Thermistor |
| Pin 4 | Thermistor |
| Pin 5 | PD(N) |
| Pin 6 | PD(P) |
Applications
Key Features
Datasheet
Supplier Information
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