Infrared and Laser Engineering, Volume. 51, Issue 8, 20210697(2022)

Adaptive optimization of SPGD method in wavefront distortion correction of space light

Hui Zhao1,2, Kaida Kuang1,2, Diankai Lv1,2, Mengjie Yu1,2, Jing An1,2, and Tianqi Zhang1,2
Author Affiliations
  • 1School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • 2Chongqing Key Laboratory of Signal and Information Processing, Chongqing 400065, China
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    Figures & Tables(7)
    Schematic diagram of WFS-less AO system
    Layout of 37-element DM actuators
    The wavefront distortion and the residual wavefront corrected by ABSPGD algorithm under different turbulence intensities. (a) ; (b) ; (c) 不同湍流强度下的波前畸变及经过ABSPGD算法校正后的残余波前。(a);(b);(c)
    SR variation curves of SPGD, ASPGD and ABSPGD algorithms under different turbulence intensities. (a) ;(b) ;(c) 不同湍流强度下SPGD、ASPGD和ABSPGD算法的SR变化曲线。(a) ;(b) ;(c)
    SR variation curves of ABSPGD, ASPGD and SPGD algorithms under different number of DM units
    • Table 1. SR values of wavefront distortion before and after correction by ABSPGD algorithm

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      Table 1. SR values of wavefront distortion before and after correction by ABSPGD algorithm

      Intensity of turbulenceBefore correctionAfter correction
      5$ {\text{0}}{\text{.33}} $$ 0.83 $
      10${\text{9} }{\text{.62} } \times {\text{1} }{ {\text{0} }^ {-4} }$$ 0.47 $
      15${\text{7} }{\text{.48} } \times {\text{1} }{ {\text{0} }^{-5} }$$ 0.31 $
    • Table 2. Optimal gain coefficients of SPGD, ASPGD and ABSPGD algorithms under different turbulence intensities

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      Table 2. Optimal gain coefficients of SPGD, ASPGD and ABSPGD algorithms under different turbulence intensities

      Intensity of turbulenceSPGDASPGDABSPGD
      50.70.0650.065
      102.80.0650.065
      1540.0650.065
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    Hui Zhao, Kaida Kuang, Diankai Lv, Mengjie Yu, Jing An, Tianqi Zhang. Adaptive optimization of SPGD method in wavefront distortion correction of space light[J]. Infrared and Laser Engineering, 2022, 51(8): 20210697

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    Paper Information

    Category: Optical communication and sensing

    Received: Dec. 8, 2021

    Accepted: --

    Published Online: Jan. 9, 2023

    The Author Email:

    DOI:10.3788/IRLA20210697

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