915 nm 40 W Fiber Coupled Laser Diode

WAVELENGTH

915 nm

POWER

40 W

FIBER CORE

105 µm

NA

0.22

Key features

• High-Intensity 40 W Output
• Superior High-Brightness 105 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 940 nm 10 W Fiber Coupled Diode Laser is a high-efficiency source designed for precision-demanding industrial and scientific applications. With an industry-leading 52% electrical-to-optical conversion rate, the K940 series is engineered to provide maximum power throughput while significantly reducing the thermal footprint and cooling requirements of the system. Delivering a stable 10 W output through a precision 105 µm fiber core, this module provides exceptional brightness and beam quality. For enhanced operational safety, it features integrated 30 dB feedback isolation (1400 nm–1600 nm), protecting the diode from back-reflections in complex optical setups. Housed in a robust, compact industrial package, it is the premier choice for laser pumping, CATV networks, and LIDAR systems where high stability and long-term reliability are non-negotiable.

SPECIFICATIONS ( 25°C ) SYMBOL UNIT K915FAHRN-40.00W
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)
CW Output Power Po W 40.0
Center Wavelength λc nm 915 ± 10
Spectral Width (FWHM) Δλ nm 3.0 7.0
Wavelength Shift / Temp Δλ/ΔT nm/°C 0.3
ELECTRICAL
DATA
Electrical-to-Optical Efficiency PE % 50
Threshold Current Ith A 1.3
Operating Current Iop A 16.0 18.0
Operating Voltage Vop V 5.2 6.0
Slope Efficiency η W/A 3.0
FIBER
DATA
Core Diameter Dcore μm 105
Cladding Diameter Dclad μm 125
Numeric Aperture NA 0.22
Fiber Length Lf m 1.0
Minimum Bending Radius mm 50
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 20 25 30
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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