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《Laser & Infrared》 2011-02
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Research on wavefront distortion compensation based on liquid crystal space light modulator

LI Xiang-zhi1,2,HAN Cheng-shan2,WEN Ming2,SUN Zhao-wei1,ZHAO Qing-lei2,JIANG Xiao-nan2(1.Research Center of Satellite Technology,Harbin Institute of Technology,Harbin 150080,China;2.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China)  
The simplex algorithm is introduced and the control inputs form mapping with Zernike polynomial coefficients because the amount of calculation if large when liquid crystal space light modulator directly compensate wavefront phase distortion.The performance metric if optimized and theexcellent Zernike polynomial if obtained which can realize precise compensation for wavefront distortion.The simplex algorithm is modified because the traditional simplex algorithm easily converges to the local minimums and the global optimization can not be achieved.The simulation results show that the modified simplex methods can force initialization to achieve the global optimization,and the analyses to the characteristics of modification provide basis for practical application.
【Fund】: 创新团队发展计划项目(No.IRT0520)资助
【CateGory Index】: TN761
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