Correction of beam quality correction of Yb:YAG laser with double deformable mirrors

被引：0
|
作者：
Li G. [1 ,2 ]
Du Y. [1 ,2 ]
Xu H. [1 ,2 ]
Xiang R. [1 ,2 ]
Wu J. [1 ,2 ]
Xie C. [1 ,2 ]
Zhou Z. [1 ,2 ]
Liu Z. [1 ,2 ]
Xiang Z. [1 ,2 ]
Zhang Q. [1 ,2 ]
机构：
[1] Institute of Applied Electronics, CAEP, Mianyang
[2] Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2022年 / 51卷 / 08期
关键词：
beam quality; deformable mirrors; Hartmann-Shack sensor; wavefront aberration;
D O I：
10.3788/IRLA20210800
中图分类号：
学科分类号：
摘要：
The basic characteristics of the wavefront aberration of Yb:YAG slab laser were analysed. Combined with spot shape and power density, a double deformabe mirror combined of water cooled 1D DM of 13 units and 2D DM of 95 units was proposed to correct the wavefront aberration of Yb:YAG slab laser. According to the characteristics of the output laser, the calibration demand analysis and calibration capability analysis were carried out. Based on this, the simulation and optimization design of the 1D DM and 2D DM were improved. The beam quality of the laser was improved from 9.03 to 1.98 in the correction experiment. The beam quality correction ability of the adaptive optical system with double DM combination mode for Yb:YAG slab laser was verified. © 2022 Chinese Society of Astronautics. All rights reserved.
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