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Proceedings Paper

Recent development on high-power tandem-pumped fiber laser
Author(s): Pu Zhou; Hu Xiao; Jinyong Leng; Hanwei Zhang; Jiangmin Xu; Jian Wu
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Paper Abstract

High power fiber laser is attracting more and more attention due to its advantage in excellent beam quality, high electricto- optical conversion efficiency and compact system configuration. Power scaling of fiber laser is challenged by the brightness of pump source, nonlinear effect, modal instability and so on. Pumping active fiber by using high-brightness fiber laser instead of common laser diode may be the solution for the brightness limitation. In this paper, we will present the recent development of various kinds of high power fiber laser based on tandem pumping scheme. According to the absorption property of Ytterbium-doped fiber, Thulium-doped fiber and Holmium-doped fiber, we have theoretically studied the fiber lasers that operate at 1018 nm, 1178 nm and 1150 nm, respectively in detail. Consequently, according to the numerical results we have optimized the fiber laser system design, and we have achieved (1) 500 watt level 1018nm Ytterbium-doped fiber laser (2) 100 watt level 1150 nm fiber laser and 100 watt level random fiber laser (3) 30 watt 1178 nm Ytterbium-doped fiber laser, 200 watt-level random fiber laser. All of the above-mentioned are the record power for the corresponded type of fiber laser to the best of our knowledge. By using the high-brightness fiber laser operate at 1018 nm, 1178 nm and 1150 nm that we have developed, we have achieved the following high power fiber laser (1) 3.5 kW 1090 nm Ytterbium-doped fiber amplifier (2) 100 watt level Thulium-doped fiber laser and (3) 50 watt level Holmium -doped fiber laser.

Paper Details

Date Published: 9 November 2016
PDF: 7 pages
Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100160M (9 November 2016); doi: 10.1117/12.2245875
Show Author Affiliations
Pu Zhou, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Hu Xiao, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Jinyong Leng, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Hanwei Zhang, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Jiangmin Xu, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Jian Wu, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)


Published in SPIE Proceedings Vol. 10016:
High-Power Lasers and Applications VIII
Ruxin Li; Upendra N. Singh; Robert F. Walter, Editor(s)

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