888 nm 120 W Wavelength-Stabilized Fiber Coupled Laser Diode

WAVELENGTH

888 nm

POWER

120 W

FIBER CORE

200 µm

NA

0.22

Key features

• High-Intensity 120 W Output
• VBG Wavelength Stabilization (± 1 nm)
• Narrow Spectral Width (0.5 nm)
• Integrated 30 dB Feedback Protection
• High-Power SMA905 Termination
• Rugged Industrial Package

Applications

• Solid-state laser pumping (DPSS)
• Direct diode systems
Material processing
• 920 nm laser pumping
• Scientific and defense research
• Custom OEM integration

Custom configurations & wavelengths available

Uncompromising performance

The 888 nm 120 W High Power Fiber Coupled Diode Laser is a technical-grade light source optimized for high-performance scientific and industrial laser pumping. Utilizing integrated Volume Bragg Grating (VBG) technology, this module achieves a precisely locked 888 nm ± 1 nm center wavelength, maintaining an ultra-narrow spectral bandwidth of 0.5 nm. This spectral purity ensures maximum absorption efficiency and thermal stability for pumping vanadate-based laser systems. Delivering a potent 120 W of continuous-wave output through a precision 200 µm fiber core, the K888 series provides exceptional power density and beam quality. Engineered for maximum reliability, it features an integrated 30 dB feedback isolation system, shielding the diode from back-reflections in the 1020 nm–1200 nm range. With its high 50% electrical-to-optical efficiency and rugged HP-SMA905 termination, this module is the premier choice for kilowatt-class DPSS laser pumping and advanced material research.

SPECIFICATIONS ( 25°C ) SYMBOL UNIT K888BL9RN-120.0W
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)
CW Output Power Po W 120
Center Wavelength λc nm 888 ± 1
Spectral Width (FWHM) Δλ nm 0.5
Wavelength Shift / Temp Δλ/ΔT nm/°C 0.03
NA Filling (95% Power) NA 0.17
ELECTRICAL
DATA
Electrical-to-Optical Efficiency PE % 50
Threshold Current Ith A 1.7
Operating Current Iop A 12.0 14.0
Operating Voltage Vop V 20.0 22.0
Slope Efficiency η W/A 10.5
FIBER
DATA
Core Diameter Dcore μm 200
Cladding Diameter Dclad μm 220
Numeric Aperture NA 0.22
Fiber Length Lf m 2.0
Minimum Bending Radius mm 88
Fiber Termination HP-SMA905
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 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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