808 nm 70 W Fiber Coupled Laser Diode

WAVELENGTH

808 nm

POWER

70 W

FIBER CORE

105 µm

NA

0.22

Key features

• High-Intensity 70 W CW Output
• Industry-Standard Pump Wavelength
• Integrated 30 dB Feedback Protection
• Narrow 105 µm Fiber Core
• 45% Wall-Plug Efficiency
• Rugged and Compact Industrial Footprint

Applications

• Solid-State Laser Pumping (Nd:YAG / Nd:YVO4)
• Medical Surgical & Dental Systems
• Industrial Material Processing
• Thermal Plate Imaging
• Scientific research
• High-Power Spectroscopy

Custom configurations & wavelengths available

Uncompromising performance

The 808 nm 70 W High Power Fiber Coupled Diode Laser is a technical-grade light source engineered for demanding scientific and industrial pumping applications. Optimized for the 808 nm absorption peak, this module provides the spectral accuracy required for high-efficiency pumping of Nd:YAG and Nd:YVO4 laser systems, ensuring maximum system gain and thermal stability. Delivering a robust 70 W of continuous-wave output through a precision 105 µm fiber core, the K808 series offers superior beam quality and exceptionally high power density. For absolute reliability, it features integrated 30 dB feedback isolation, protecting the diode from back-reflections in the 1020 nm–1200 nm range. Built with a high 45% electrical-to-optical efficiency and rugged SMA905 termination, this module is the definitive choice for high-power laser pumping, scientific research, and high-precision materials processing.

SPECIFICATIONS ( 25°C ) SYMBOL UNIT K808DA5RN-70.00W
MINIMUM TYPICAL MAXIMUM
OPTICAL
DATA(1)
CW Output Power Po W 70
Center Wavelength λc nm 808 ± 3
Spectral Width (FWHM) Δλ nm 6
Wavelength Shift / Temp Δλ/ΔT nm/°C 0.3
ELECTRICAL
DATA
Electrical-to-Optical Efficiency PE % 45
Threshold Current Ith A 1.5
Operating Current Iop A 9 11
Operating Voltage Vop V 18
Slope Efficiency η W/A 8
FIBER
DATA
Core Diameter Dcore μm 105
Cladding Diameter Dclad μm 125
Numeric Aperture NA 0.22
Fiber Length Lf m 2.0
Minimum Bending Radius mm 50
Fiber Termination 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) Ttop °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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