复合式激光通信系统多光轴一致性温度影响研究  

Temperature Influence of Multi-Optical Axis Consistency in Compound Laser Communication System

作　　者：李响[1,3] 刘赫 高亮 安岩[1,3] 宋延嵩[1,3] 孙梓庭[2] 朱永奇 席文强 周晨 Li Xiang;Liu He;Gao Liang;An Yan;Song Yansong;Sun Ziting;Zhu Yongqi(Xi Wenqiang2,Zhou Chen21School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022,Jilin,China;College of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun 130022,Jilin,China;National and Local Joint Engineering Research Center of Space and Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,Jilin,China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130022 [2]长春理工大学机电工程学院,吉林长春130022 [3]长春理工大学空间光电技术国家与地方联合工程研究中心,吉林长春130022

出　　处：《光学学报》2022年第18期57-65,共9页Acta Optica Sinica

摘　　要：包含章动、自适应光学以及精跟踪功能的复合激光通信系统的光路复杂,环境温度改变时多光轴的一致性较难保证,导致波前校正基准、跟踪零位偏移,严重影响通信链路的建立。为解决以上问题,对系统进行了一体化设计,提出了针对多光轴复杂光路的光轴一致性的分析方法,建立了多反射镜误差传递模型。经过计算可得:在10~30℃的环境温度范围内,精跟踪支路与通信支路间、通信发射支路与通信接收支路间、精跟踪支路与自适应光学支路间同轴度误差优于143.77μrad、27.38μrad和131.66μrad。在实验室中进行30℃温度拉偏实验,实验结果表明:光轴实际偏转角度与仿真结果之间的误差优于13%。随后进行了楼宇间的1 km激光通信实验(环境温度28℃),成功实现稳定通信。Due to the complex optical path,it is difficult to ensure the multi-optical axis consistency of the compound laser communication system that includes functions of nutation,adaptive optics,and fine tracking when the environment temperature changes,which leads to the drifts of wavefront correction benchmark and tracking zero position and seriously affects the establishment of communication links.In order to solve the above problems,this paper designs an integrated system,proposes a method for analyzing the multi-optical axis consistency of the complex optical path,and establishes an error propagation model of multiple reflective mirrors.After calculation,it is found that when the environment temperature ranges from 10℃to 30℃,the coaxial errors between the fine tracking path and the communication path,between the communication launching path and the communication receiving path,and between the fine tracking path and the adaptive optics path are less than 143.77μrad,27.38μrad,and 131.66μrad,respectively.The 30℃temperature adjustment experiment is carried out in the laboratory,and the experimental results show that the error between the actual and simulated deflection angles of the optical axis is less than 13%.Furthermore,a laser communication experiment(at 28℃)with a linear distance of 1 km between buildings is carried out to realize stable communication.

关 键 词：光通信 多光轴一致性 仿真分析 刚体位移 误差传递模型 

分 类 号：TH741[机械工程—光学工程]