相干光通信系统光锁相环性能分析  

Performance analysis of OPLL in Coherent Optical Communication System

作　　者：蒋炜[1] 谭庆贵[1] 郭海超[1] 张文睿[1] 郑伟[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2011年第3期7-10,共4页Space Electronic Technology

摘　　要：文章基于costas OPLL工作原理和数学模型,研究分析了costas OPLL环路数学模型和环路相位噪声,并计算得到了costas环的环路带宽、线宽和90°光混频移相器输出光功率分配比等重要环路设计参数。分析计算结果为星载相干光通信系统光锁相环的设计提供了理论依据。In this paper,on the basis of the costas OPLL configuration,costas OPLL mathematical model and phase noise were showed,then the bandwidth,linewidth and optical power splitting ratio were then analyzed and computed.All these results in this thesis can provide theoretical supportment for intersatellite coherent optical communication system.

关 键 词：相干光通信 COSTAS OPLL 线宽 相位噪声 

分 类 号：TN929.11[电子电信—通信与信息系统]