Closed-loop beam quality control for MOPA solid slab laser

Xiang Rujian; He Zhongwu; Xu Honglai; Luo Zhongxiang; Du Yinglei; Lu Fei; Hu Hao; Zhou Wenchao

doi:10.3788/HPLPB20132502.0358

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 358-362

Zheng Zheng, Wu Hongchun, Cao LiangZhi, et al. Application of Monte Carlo and discrete ordinate coupling method to pressurized water reactor cavity radiation streaming calculation[J]. High Power Laser and Particle Beams, 2012, 24: 2946-2950. doi: 10.3788/HPLPB20122412.2946

Citation:

Xiang Rujian, He Zhongwu, Xu Honglai, et al. Closed-loop beam quality control for MOPA solid slab laser[J]. High Power Laser and Particle Beams, 2013, 25: 358-362. doi: 10.3788/HPLPB20132502.0358

Citation:

Xiang Rujian, He Zhongwu, Xu Honglai, et al. Closed-loop beam quality control for MOPA solid slab laser[J]. High Power Laser and Particle Beams, 2013, 25: 358-362. doi: 10.3788/HPLPB20132502.0358

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Closed-loop beam quality control for MOPA solid slab laser

doi: 10.3788/HPLPB20132502.0358

1.
Key Laboratory of Science and Technology on High Energy Laser,Institute of Applied Electronics,CAEP,P.O.Box 919-1012,Mianyang 621900,China

Received Date: 2012-06-07
Rev Recd Date: 2012-09-20
Publish Date: 2013-02-10

Abstract

Abstract

This paper introduces the beam characteristics of the MOPA slab laser system, including near-field intensity distribution, spatial character and temporal frequency of wavefront distortion. The deformable mirror with large dynamic range and high spatial resolution was developed. The adaptive optics closed-loop correction system was designed to complete the closed-loop control of the whole propagation process of high power beams. The value of of beam quality has been improved from 7.4 to 4.06. According to the residual error of the closed-loop wavefront correction, the beam quality of the MOPA might be further improved.
- MOPA,
- beam quality,
- adaptive optics,
- deformable mirror,
- wavefront distortion

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