878.6nm 90W High Power Wavelength-Stabilized Semiconductor Laser K878BA5RN-90.00W
The K878BA5RN-90.00W from BWT is an 878.6nm, 90W high power wavelength-stabilized semiconductor (diode) laser in a compact fiber-coupled package. It delivers a minimum fiber output power of 90W through a 200µm/400µm core, 0.22 NA multimode fiber terminated with an SMA905 connector. Thanks to wavelength-stabilization technology, the laser achieves a narrow spectral width of 0.5nm (FWHM) and a low wavelength temperature drift of 0.03nm/°C, ensuring precise matching with the absorption band of solid-state gain media. The module offers a high electro-optical conversion efficiency of 50%, a slope efficiency of 9W/A, and integrates an anti-reflection design with 30dB isolation in the 1020~1200nm band to protect the chip from back-reflected light. The gold-plated package (approx. 80mm×48mm×16mm) features a 6-pin configuration with optional thermistor pins for temperature monitoring, and is designed for operation at 20~30°C base-plate temperature. All specifications are tested at 90W output and 25°C.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Output Power (Po) | ≥90W |
| Center Wavelength (λc) | 878.6±1nm |
| Spectral Width FWHM (△λ) | 0.5nm |
| Wavelength Temperature Coefficient (△λ/△T) | 0.03nm/°C |
| Electro-Optical Conversion Efficiency (PE) | 50% |
| Threshold Current (Ith) | 1.5A |
| Operating Current (Iop) | 11.5A(Typ.)/14A(Max.) |
| Operating Voltage (Vop) | 14.6V(Typ.)/17V(Max.) |
| Slope Efficiency (η) | 9W/A |
| Fiber Core Diameter (Dcore) | 200/400µm |
| Cladding Diameter (Dclad) | 220/440µm |
| Numerical Aperture (NA) | 0.22 |
| Fiber Length (Lf) | 1.5m |
| Fiber Jacket Diameter | 0.9mm |
| Fiber Bending Radius | 88/176mm |
| Fiber Connector | SMA905 |
| Anti-Reflection Wavelength Range (λ) | 1020~1200nm |
| Anti-reflection Isolation | 30dB |
| ESD (Vesd) | ≤500V |
| Storage Temperature (Tst) | -20~70°C |
| Soldering Temperature (Tls) | ≤260°C |
| Soldering Time (t) | ≤10sec |
| Operating Temperature (Top, Base Plate) | 20~30°C |
| Relative Humidity (RH) | 15~75% |
| Test Conditions | Po=90W@25°C |
| Package Dimensions | 80mm×48mm×16mm |
| Pin 1 | Laser (+) |
| Pin 2 | Laser (-) |
| Pin 3 | Thermistor (Optional) |
| Pin 4 | Thermistor (Optional) |
| Pin 5 | - |
| Pin 6 | - |
Applications
Key Features
Datasheet
Supplier Information
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