旋转双棱镜指向系统转角补偿偏差修正方法  

Correction method for angle compensation deviation of rotating biprism pointing system

作　　者：邱赛 盛磊[1] 高世杰[1] 刘永凯[1] 伞晓刚[1] 吴佳彬 QIU Sai;SHENG Lei;GAO Shijie;LIU Yongkai;SAN Xiaogang;WU Jiabin(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,长春130033 [2]中国科学院大学,北京100049

出　　处：《光通信技术》2021年第2期41-45,共5页Optical Communication Technology

基　　金：长光复旦联合基金(NO.Y8O732E)资助。

摘　　要：针对旋转双棱镜系统解算困难、误差源众多和指向精度较低的问题,提出了一种补偿旋转双棱镜指向系统转角的修正方法,采用求偏导和建立全微分方程的方法建立光束指向误差与棱镜转角误差关系,解算出补偿角。经实验验证:在99.57%的指向区域中,指向偏差最大值由1.8742°降低为1.4753°,均方根由0.1401°降低为0.0893°,补偿棱镜转角修正方法可有效提高指向精度。Aiming at the problems of the rotating biprism system,such as the difficulty of solution,many error sources and low pointing accuracy,a correction method is proposed to compensate the rotation angle of the rotating biprism pointing system.In this paper,the relationship between the beam pointing error and the prism angle error is established by solving the partial derivative and establishing the total differential equation,and the compensation angle is calculated.Experiments have verified that in 99.57%of the pointing area,the maximum pointing deviation is reduced from 1.8742°to 1.4753°,and the root mean square is reduced from 0.1401°to 0.0893°.The compensation prism angle correction method can effectively improve the pointing accuracy.

关 键 词：激光通信 旋转双棱镜 指向模型 偏差修正 系统误差 

分 类 号：TN384[电子电信—物理电子学]