Chinese Optics, Volume. 18, Issue 4, 784(2025)

Improved simulated annealing algorithm for wavefront correction in free-space optical communication

Hong-li LI1,2, Xin-yue LIU1, Bo-jun DU3, Jing-tai CAO1, and Heng ZHANG1、*
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Unit 63850 of the People's Liberation Army, Baicheng 137001, China
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    Figures & Tables(14)
    Schematic diagram of conventional CFSOC system with WLAO
    Initial Zernike coefficients of the wavefront aberration. (a) Weak turbulence; (b) strong turbulence
    Wavefront phase surfaces before (a) and after (b) correction under strong turbulence
    Wavefront phase surfaces before (a) and after (b) correction under weak turbulence
    Comparison of different algorithms under (a) strong turbulence and (b) weak turbulence
    Wavefront correction results under strong turbulence
    Wavefront correction results under weak turbulence
    Comparison of system BER
    Picture of experimental platform
    Schematic diagram of the experimental platform system framework
    Far-field images (a) before and (b) after correction
    Comparison of the equivalent ME before and after correction
    Comparison of the BER before and after correction
    • Table 1. Algorithm pseudocode

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      Table 1. Algorithm pseudocode

      算法: 改进模拟退火算法
      输入:种群数量,最大迭代次数MaxIter,最大退火次数MaxCooling,初始温度$ {T}_{0} $,退火效率$ \lambda $
      输出:最优解 BestSolution
      1:  初始化种群中的个体
      2:  for1 iter from 1 to MaxIter
      3:   for2 k from 1 to MaxCooling
      4:    随机生成服从伯努利分布的扰动电压
      5:    计算评价指标
      6:    根据Metropolis准则决定是否接收新的解
      7:    降低温度
      8:   end for2
      9:   找到当前最优个体 pbest,围绕pbest进行折叠
      10:   再加热
      11:  end for1
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    Hong-li LI, Xin-yue LIU, Bo-jun DU, Jing-tai CAO, Heng ZHANG. Improved simulated annealing algorithm for wavefront correction in free-space optical communication[J]. Chinese Optics, 2025, 18(4): 784

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    Paper Information

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    Received: Feb. 26, 2025

    Accepted: Apr. 2, 2025

    Published Online: Aug. 13, 2025

    The Author Email:

    DOI:10.37188/CO.2025-0028

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