Beam-shaping technique for fiber-coupled diode laser system by homogenizing the beam quality of two laser diode stacks

被引：15
|
作者：
Lin, Guyi [1 ,3 ,4 ]
Zhao, Pengfei [1 ,3 ,4 ]
Dong, Zhiyong [1 ,3 ,4 ]
Lin, Xuechun [1 ,2 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Lab All Solid State Light Sources, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 101407, Peoples R China
[4] Beijing Engn Technol Res Ctr All Solid State Lase, Beijing 100083, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2020年 / 123卷
关键词：
Diodes;
D O I：
10.1016/j.optlastec.2019.105919
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A beam shaping technique is presented to homogenize the beam quality of two laser diode stacks. We use polarization beam combiners to halve the beam sizes in the slow axis, and then rearrange the beams coming from two stacks to eliminate the lightless areas by using a quartz-plate stack in the fast axis. By this technique, two 12-bar laser diode stacks are coupled into an 800 mu m/0.22 fiber. The experiment shows that the fiber-coupled system has an output power over 1400 W, and the fiber coupling efficiency of 87.5% is achieved, which are almost consistent with the Zemax simulation results.
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收藏
页数：6
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