自适应光学对星地相干激光通信性能改善研究  

The research of performance evaluation of adaptive optics for satellite to ground coherent laser communication

作　　者：徐圣奇[1] 魏龙超[1] 邬双阳[1] 冯晓峰 刘杰[1] 张志正[1] XU Sheng-qi;WEI Long-chao;WU Shuang-yang;FENG Xiao-feng;LIU Jie;ZHANG Zhi-zheng(The 27th Research Institute of CETC,Zhengzhou 450047,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,河南郑州450007

出　　处：《激光与红外》2020年第12期1498-1503,共6页Laser & Infrared

摘　　要：相干激光通信能够实现每秒数百吉比特的通信速率和接近量子极限的灵敏度,在未来天地一体化信息网络中具有广泛的应用前景。大气湍流引入的光学波前畸变是影响星地相干激光通信链路性能的重要因素。本文将自适应光学技术应用于大口径光学地面接收站,并系统地开展了4 Gbps高速相干激光通信试验,试验结果表明,自适应光学技术能够有效抑制中等大气湍流的影响,并提高相干激光通信的灵敏度和稳定性。The communication rate of coherent laser communication can reach hundreds of Gbps and its receiving sensitivity can be close to the quantum limit,these advantages determine that it has a wide application prospect in the future space-ground integration information network.The optical wave front distortion caused by atmospheric turbulence is a disruptive factor that affects the performance of satellite to ground laser communication.In this paper,we innovatively applied adaptive optics technology to an optical ground receiving station,and 4Gbps coherent laser communication experiment was carried out systematically,the experimental results indicate that adaptive optics can effectively suppress the effect of atmospheric turbulence and improve the sensitivity and stability of the communication system.

关 键 词：自适应光学 相干激光通信 大气湍流 

分 类 号：O439[机械工程—光学工程] TN929.1[理学—光学]