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Proceedings Paper

Design of a kW-output fiber coupled diode laser system
Author(s): Hualing Wu; Linhui Guo; Junhong Yu; Songxin Gao; Deyong Wu
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Paper Abstract

Fiber-coupled diode laser pumping source is one of the key components of high-power fiber laser system. Its performance is significant to the output power of fiber laser system. A 1.8kW fiber-coupled diode laser system is designed by using ZEMAX optical design software. The technologies of high-precision beam collimation, spatial multiplexing, polarization multiplexing, beam expanding, focusing and coupling are used to couple the beams of 42 diode laser bars into a fiber with a core diameter of 200μm and NA 0.22. Every beam emit from diode laser bar is single polarization, and its central wavelength is 976nm @ 55W. The desigh result showed the fiber output power could reach 1800W, and the fiber-coupling efficiency was 78%, the brightness was 37MW/(cm2·sr),corresponding. This fiber-coupled system can be used in fiber pumping, material process and many other areas.

Paper Details

Date Published: 15 October 2015
PDF: 6 pages
Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967112 (15 October 2015); doi: 10.1117/12.2199691
Show Author Affiliations
Hualing Wu, China Academy of Engineering Physics (China)
Linhui Guo, China Academy of Engineering Physics (China)
Junhong Yu, China Academy of Engineering Physics (China)
Songxin Gao, China Academy of Engineering Physics (China)
Deyong Wu, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 9671:
AOPC 2015: Advances in Laser Technology and Applications
Shibin Jiang; Lijun Wang; Chun Tang; Yong Cheng, Editor(s)

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