激光通信旋转双棱镜系统误差对指向精度的影响  

Influence of laser communication Risley prism system error on pointing accuracy

作　　者：邱赛 盛磊[1] 高世杰[1] 刘永凯[1] 宋一诺 QIU Sai;SHENG Lei;GAO Shi-jie;LIU Yong-kai;SONG Yi-nuo(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《光学精密工程》2021年第6期1281-1290,共10页Optics and Precision Engineering

基　　金：长光复旦联合基金资助项目(No.Y8O732E)。

摘　　要：分析了旋转双棱镜系统存在的误差源,根据误差源,采用光线矢量传播方法建立了光束指向模型,基于光束指向模型求旋转双棱镜系统出射光束指向偏差对系统误差的偏导数;在指向区域中,根据各个误差的测量精度分析误差对指向精度的影响。仿真计算结果表明,理论指向偏差最大值为0.3620°,理论指向偏差均方根为0.0470°;桌面实验结果表明,在99.54%的指向区域中,实验偏差最大值为0.3563°,实验偏差均方根为0.0233°,均小于仿真计算值。这一结果表明,本文对旋转双棱镜系统的误差分析较为准确,对旋转双棱镜平台的设计和补偿修正具有一定的参考价值。The error source of the Risley prism system is analyzed and used to establish the beam-pointing model by using the light vector propagation method.The beam pointing model is used to calculate the par⁃tial derivative of the pointing deviation of the output beam from the Risley prism system to each error in the system.In the pointing area,the influence of errors on pointing accuracy is analyzed according to the accu⁃racy of each error.The simulation calculation results show that the maximum theoretical pointing devia⁃tion is 0.3620°,and the theoretical root mean square deviation is 0.0470°.The desktop experimental re⁃sults show that in 99.54%of the pointing area,the maximum experimental deviation is 0.3563°,and the experimental deviation root mean square of 0.0233°is less than the calculated simulation value.This re⁃sult shows that the error analysis of the Risley prism system is accurate and could be used as a reference for the design and compensation of the Risley prism platform.

关 键 词：激光通信 旋转双棱镜 指向模型 误差分析 

分 类 号：TH703[机械工程—仪器科学与技术] TN929.13[机械工程—精密仪器及机械]