【作者】 李彤； 姜会林； 胡原； 温冠宇；

【Author】 LiTong JiangHuiLin HuYuan WenGuanYu (ChangChun University of science and Technology,Optical Engineering,JilLin,ChangChun,130022)

【机构】 长春理工大学光学工程学院；

【摘要】 空间光通信作为一种新的空间通信手段,经过多年探索并于近几年取得突破性进展。天地激光链路是空间光通信中重要的组成部分,论文主要研究天地激光通信光学系统。首先分析天地激光通信光学系统基本要求,研究卡塞格林系统作为天地激光通信系统中光学天线的设计参数间的相互关系,设计通信波长为1550nm,口径200mm的卡塞格林光学天线。然后为实现轻小型化的激光通信,提出使用扫描范围为0.465°的旋转双光楔作为跟踪执行单元,利用分光镜和反射镜使发射光路和接收光路彼此相分离。最后针对激光通信光学系统进行了系统评价及通信光功率计算。更多还原

【Abstract】 Laser communication in space is rather a new mean of communication in space,after years research,there has been a dramatically breakthrough for optical communication technique recently.The sky-ground laser link is a very important part of optical communication in space.The main contents of this paper is to study the optical system of sky-ground laser communication.First,in this paper,the basic requirement of optical system has been analyzed and the relationship has been discussed between design parameters of Cassegrain optical system as the receiving antenna for laser communication system.The optical design for Cassegrain optical antenna with communication wavelength 1550nm and the aperture 200mm is done.Then in order to achieve miniaturization of the laser communication system,proposed and designed the track unit with the scan range0.465° using a rotational wedge and use the reflecting mirror and beam splitter mirror separate the different subsystems.Finally we evaluated the optical system of the laser communication system.更多还原