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 )SYMBOLUNITK915-A0-250.0W-13522-D
MINIMUMTYPICALMAXIMUM
OPTICAL
DATA(1)
CW Output PowerPoW250
Center Wavelengthλcnm915 ± 10
Spectral Width (FWHM)Δλnm46
Wavelength Shift / TempΔλ/ΔTnm/°C0.3
NA Ratio (0.17 / 0.22)%9095
ELECTRICAL
DATA
Electrical-to-Optical EfficiencyPE%50
Threshold CurrentIthA1.4
Operating CurrentIopA2628
Operating VoltageVopV2123
Slope EfficiencyηW/A10.2
FIBER
DATA
Core DiameterDcoreμm135
Cladding DiameterDcladμm155
Numeric ApertureNA0.22
Fiber LengthLfm2
Minimum Bending Radiusmm62
Fiber TerminationFerrule
FEEDBACK
ISOLATION
Wavelength Rangenm1020 ~ 1200
IsolationdB30
OTHERSESDVesdV500
Storage Temperature(2)Tst°C-2070
Operating Case Temp(3)Top°C1535
Relative HumidityRH%1575

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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