915nm 250W High Power Fiber-Coupled Semiconductor Laser K915-A0-250.0W-13522-D
The K915-A0-250.0W-13522-D is a 915nm 250W high power fiber-coupled semiconductor laser (diode laser) module developed by BWT. It delivers 250W of output power through a 135μm core / 155μm cladding fiber with 0.22 numerical aperture and a 2m fiber length, terminated with an FF fiber output head. The module offers a typical electro-optical efficiency of 50%, a typical operating current of 26A, and integrates a 1020~1200nm anti-reflection protection function with 30dB isolation, making it highly reliable as a pump source for fiber lasers. It adopts a compact gold-plated package (141×55×18mm) with two electrical pins (LD+/LD-) and requires constant-current drive and proper heat dissipation during operation.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Output Power | 250W(Min.) |
| Center Wavelength | 915±10nm |
| Spectral Width (FWHM) | 4nm(Typ.), 6nm(Max.) |
| Temperature Drift Coefficient | 0.3nm/°C(Typ.) |
| Power Ratio within 0.17/0.22NA | 90%(Min.), 95%(Typ.) |
| Electro-optical Efficiency | 50%(Typ.) |
| Operating Current | 26A(Typ.), 28A(Max.) |
| Threshold Current | 1.4A(Typ.) |
| Operating Voltage | 21V(Typ.), 23V(Max.) |
| Slope Efficiency | 10.2W/A(Typ.) |
| Fiber Core Diameter | 135μm |
| Fiber Cladding Diameter | 155μm |
| Numerical aperture | 0.22 |
| Fiber Length | 2m |
| Fiber Jacket Diameter | 0.9mm |
| Minimum Bending Radius | 62mm(Min.) |
| Fiber Output Head | FF |
| Anti-reflection Wavelength Band | 1020~1200nm |
| Isolation | 30dB |
| ESD | 500V(Max.) |
| Storage Temperature | -20~70°C |
| Soldering Temperature | 260°C(Max.) |
| Soldering Time | 10s(Max.) |
| Operating Temperature | 15~35°C |
| Relative Humidity | 15%~75% |
| Package Dimensions | 141×55×18mm (L×W×H) |
| Mounting Holes | 4×Ø3.4mm THRU |
| Pin Holes | 2×Ø2.5mm |
| Pin Assignment | Pin 1: LD(+); Pin 2: LD(-) |
| Test Conditions | 250W@25°C |
Applications
Key Features
Datasheet
Supplier Information
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