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940nm 70W Fiber coupled diode laser for pump application

Short Description:

BWT, founded in 2003, providing diode laser, fiber laser, ultra-fast laser products and solutions to global customers. We pursue continuous innovation and adhere to independent and controllable advanced processes and technologies.


Product Detail

Product Tags

Product Features

BWT, founded in 2003, providing diode laser, fiber laser, ultra-fast laser products and solutions to global customers. We pursue continuous innovation and adhere to independent and controllable advanced processes and technologies. With Beijing headquarters as the core, BWT has successively established production and R&D centers in Jiangsu, Shanghai and Shenzhen, and invested in the construction of intelligent and digital production bases in Tianjin.

In 2020, BWT established a German subsidiary and introduced European quality standards to further build the world’s highest level of technical strength and product quality, taking a solid step towards the internationalization of R&D, production and technological innovation.

Main Features

Wavelength:940nm
Output power: 70W
Fiber core diameter: 105μm
Optical fiber numerical aperture:0.22 NA
Feedback protection:1400nm-1600nm
Applications:
Fiber laser pump source

Instructions for use

- Avoid eye and skin exposure to direct radiation during operation.
-ESD precautions must be taken during storage, transportation and operation.
-Short-circuit is required between pins during storage and transportation.
-Please connect pins to wires by solder instead of using socket when operation current is higher than 6A.

Specifications (25°C) Symbol Unit Minimum Typical Maximum
Optical Data ( 1 ) CW OutputPower Po w 70 - -
Center Wavelength λc nm 940 ±3
Spectral Width(FWHM) △λ nm - 3 6
Wavelength Shift with Temperature △λ/△T nm/°C - 0.3 -
Wavelength Shift with Current △λ/△A nm/A - 0.6 -
Electrical Data Electrical-to-Optical Efficiency PE % - 52 -
Operating Current Iop A - 12 13
Threshold Current Ith A - 1.2 -
Operating Voltage Vop V - 11.2 12.5
Slope Efficiency η W/A - 6.5 -
Fiber Data Core Diameter Dcore μm - 105 -
Cladding Diameter Ddad μm - 125 -
Numeric Aperture NA - - 0.22 -
Fiber Length Lf m - 2 -
Fiber Loose Tubing Diameter - mm 0.9
Minimum Bending Radius - mm 50 - -
Fiber Termination - - None
Feedback Isolation Wavelength Range - nm 1400-1600
Isolation - dB - 30 -
Others ESD Vesd V - - 500
Storage Temperature( 2 ) Tst °C -20 - 70
Lead Soldering Temp Tls °C - - 260
Lead Soldering Time t sec - - 10
Operating Case Temperature( 3) Top °C 20 - 30
Relative Humidity RH % 15 - 75

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