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Infrared and Laser Engineering, Volume. 51, Issue 8, 20210800(2022)

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

Guohui Li1,2, Yinglei Du1,2, Honglai Xu1,2, Rujian Xiang1,2, Jing Wu1,2, Chuanlin Xie1,2, Zhiqiang Zhou1,2, Zhangwen Liu1,2, Zhenjiao Xiang1,2, and Qiushi Zhang1,2
Author Affiliations
  • 1Institute of Applied Electronics, CAEP, Mianyang 621900, China
  • 2Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang 621900, China
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    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.

    Keywords
    beam qualitydeformable mirrorsHartmann-Shack sensorwavefront aberration
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    Guohui Li, Yinglei Du, Honglai Xu, Rujian Xiang, Jing Wu, Chuanlin Xie, Zhiqiang Zhou, Zhangwen Liu, Zhenjiao Xiang, Qiushi Zhang. Correction of beam quality correction of Yb:YAG laser with double deformable mirrors[J]. Infrared and Laser Engineering, 2022, 51(8): 20210800

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    Paper Information

    Category: Lasers & Laser optics

    Received: Nov. 18, 2021

    Accepted: Dec. 18, 2021

    Published Online: Jan. 9, 2023

    The Author Email:

    DOI:10.3788/IRLA20210800

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology