878 nm 30 W Wavelength-Stabilized Fiber Coupled Laser Diode

WAVELENGTH

878.6 nm

POWER

30 W

FIBER CORE

200 µm

NA

0.22

Key features

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

Applications

• Solid-state laser pumping (Nd:YAG, Nd:YVO4)
• Medical Surgical Laser Engines
Material processing
• Fiber Laser Seeding
• Scientific and defense research
• Custom OEM integration

Custom configurations & wavelengths available

Uncompromising performance

The 878.6 nm 30 W High Power Fiber Coupled Diode Laser is a premium pump source specifically designed for the next generation of high-efficiency solid-state laser systems. By utilizing integrated Volume Bragg Grating (VBG) technology, this module maintains an exceptionally stable 878.6 nm ± 1 nm center wavelength, enabling “zero-quantum-defect” pumping strategies. This approach significantly reduces the thermal load on the gain medium, ensuring superior beam stability and power scalability for the entire laser platform. Delivering 30 W of continuous-wave output through a high-precision 200 µm fiber core, the K878 series combines industrial reliability with scientific-grade spectral purity. The module features integrated 30 dB feedback isolation, protecting the diode from harmful back-reflections across a wide spectral range (1020 nm–1200 nm). With a robust 48% electrical-to-optical conversion efficiency and a standard SMA905 technical interface, this module is the definitive choice for precision laboratory research and high-performance surgical laser engines.

SPECIFICATIONS ( 25°C ) SYMBOL UNIT K878BAHRN-30.00W
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)
CW Output Power Po W 30
Center Wavelength λc nm 878.6 ± 1
Spectral Width (FWHM) Δλ nm 0.5
Wavelength Shift / Temp Δλ/ΔT nm/°C 0.03
ELECTRICAL
DATA
Electrical-to-Optical Efficiency PE % 48
Threshold Current Ith A 1.5
Operating Current Iop A 12.5 13
Operating Voltage Vop V 5.0 6.0
Slope Efficiency η W/A 2.7
FIBER
DATA
Core Diameter Dcore μm 200
Cladding Diameter Dclad μm 220
Numeric Aperture NA 0.22
Fiber Length Lf m 1.5
Fiber Termination SMA905 or 200 μm core
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) Ttop °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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