915 nm 250 W High-Power Fiber-Coupled Laser Diode

WAVELENGTH

915 nm

POWER

250 W

FIBER CORE

135 µm

NA

0.22

Key features

• High-Intensity 250 W Output
• Superior High-Brightness 135 µm Core
• High NA Ratio (90/95%)
• Integrated 30 dB Feedback Protection
• Ultra-High Brightness 105 µm Core
• Rugged Industrial Package

Applications

• Fiber laser pumping
• Direct diode systems
Material processing
• Scientific and defense research
• Custom OEM integration

Custom configurations & wavelengths available

Uncompromising performance

The 915 nm 250 W High Power Fiber Coupled Diode Laser is an ultra-high-output source engineered for the most rigorous industrial pumping and material processing environments. By delivering a potent 250 W of continuous-wave output through a concentrated 135 µm fiber core, the K915 series provides exceptional energy density and high beam quality for industrial integration. Designed for maximum reliability and efficiency, this module achieves a superior 50% electrical-to-optical conversion rate, significantly reducing the system’s thermal load and operating costs. To ensure absolute diode protection in high-power systems, it features integrated 30 dB feedback isolation, shielding the source from back-reflections in the 1020 nm–1200 nm range. Built with rugged industrial-grade components and a precision Ferrule termination, it is the premier choice for pumping multi-kilowatt fiber lasers and advanced scientific research.

SPECIFICATIONS ( 25°C ) SYMBOL UNIT K915-A0-250.0W-13522-D
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)
CW Output Power Po W 250
Center Wavelength λc nm 915 ± 10
Spectral Width (FWHM) Δλ nm 4 6
Wavelength Shift / Temp Δλ/ΔT nm/°C 0.3
NA Ratio (0.17 / 0.22) % 90 95
ELECTRICAL
DATA
Electrical-to-Optical Efficiency PE % 50
Threshold Current Ith A 1.4
Operating Current Iop A 26 28
Operating Voltage Vop V 21 23
Slope Efficiency η W/A 10.2
FIBER
DATA
Core Diameter Dcore μm 135
Cladding Diameter Dclad μm 155
Numeric Aperture NA 0.22
Fiber Length Lf m 2
Minimum Bending Radius mm 62
Fiber Termination Ferrule
FEEDBACK
ISOLATION
Wavelength Range nm 1020 ~ 1200
Isolation dB 30
OTHERS ESD Vesd V 500
Storage Temperature(2) Tst °C -20 70
Operating Case Temp(3) Top °C 15 35
Relative Humidity RH % 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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