976nm 260W Wavelength-Locked Fiber-Coupled Diode Laser K976BA0RN-260.0WN0N-13522F20EFF
The K976BA0RN-260.0WN0N-13522F20EFF is a 976nm, 260W wavelength-locked fiber-coupled diode laser (standard product) from BWT. It delivers high-brightness pump power through a 135μm core, 0.22NA multimode fiber with a 2m length and an FC bare ferrule output. Wavelength-locking technology ensures a stable center wavelength of 976±1nm and a narrow 0.7nm (FWHM) spectral width, with 90% of the energy concentrated within 974.5~977.5nm, perfectly matching the absorption band of Yb-doped fibers. Integrated anti-reflection protection (1020~1200nm, 30dB isolation) safeguards the diode against back-reflected light. The compact gold-plated package measures 130mm×55mm×18mm, uses two pins (Pin 1: LD+, Pin 2: LD-), operates at a typical 20.0A/27.5V with 50% electro-optical efficiency, and requires good heat dissipation, constant-current driving and ESD protection during use.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Output Power (Po) | ≥260W |
| Center Wavelength (λc) | 976±1nm |
| Spectral Width (FWHM) (△λ) | 0.7nm(Typ.), 1.0nm(Max.) |
| Wavelength Temperature Coefficient (△λ/△T) | 0.02nm/°C(Typ.) |
| Wavelength Current Coefficient (△λ/△I) | 0.03nm/A(Typ.) |
| Power Conversion Efficiency (PE) | 50%(Typ.) |
| Threshold Current (Ith) | 1.3A(Typ.) |
| Operating Current (Iop) | 20.0A(Typ.), 24.0A(Max.) |
| Operating Voltage (Vop) | 27.5V(Typ.), 32.0V(Max.) |
| Slope Efficiency (η) | 14.0W/A(Typ.) |
| Fiber Core Diameter (Dcore) | 135μm |
| Cladding Diameter (Dclad) | 155μm |
| Numerical Aperture (NA) | 0.22 |
| Fiber Length (Lf) | 2m |
| Fiber Jacket | 0.9mm |
| Bending Radius | ≥62mm |
| Fiber Connector | FC裸插芯 (FC Bare Ferrule) |
| Anti-reflection Band | 1020~1200nm |
| Isolation | 30dB |
| ESD (Vesd) | ≤500V |
| Storage Temperature (Tst) | -20℃~70℃ |
| Soldering Temperature (Tls) | ≤260℃ |
| Soldering Time (t) | ≤10sec |
| Operating Temperature (Top, Base Plate) | 23℃~27℃ |
| Relative Humidity (RH) | 15%~75% |
| 90% Energy Wavelength Range | 974.5nm~977.5nm |
| Dimensions (L×W×H) | 130mm×55mm×18mm |
| Pin 1 | 激光器(+)/LD(+) |
| Pin 2 | 激光器(-)/LD(-) |
| Test Conditions | All data tested at nominal output power @25°C, non-condensing |
Applications
Key Features
Datasheet
Supplier Information
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