自由空间光通信系统稳定性改进  

Improvement about the stability of free space optical communication system

作　　者：李梅菊[1,2] 罗进文[1] 王喆[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,兰州730070 [2]青海民族大学物理与电子信息工程学院,西宁810070

出　　处：《光通信技术》2013年第2期50-52,共3页Optical Communication Technology

基　　金：东南大学移动通信国家重点实验室开放基金(303047)资助;甘肃省高等学校基本科研业务费项目(620005)资助

摘　　要：为改进自由空间光通信系统稳定性,先分析影响自由空间光通信系统性能主要因素,其次,用光功率分配器将光源发射出来的光分为多束光波进入大气信道,相当于多条信道同时传输,最后用Op-tiSystem软件仿真,将传统系统和改进系统性能对比。分析眼图得出所设计系统稳定性优于传统系统,为实现自由空间光通信系统全天候通信提供理论依据。In order to improve the stability of free space optical communication systems,firstly, analyzed the major factor of impacting free space optical communication system properties,secondly, the light power split- ter divided the light out of the LD into many bunches, which is equivalent to simultaneous transmission via multiple channels,finally, OptiSystem software simulation compared the designed system with traditional sys- tem. Eye diagrams verifies that the stability of designed system is better than the traditional system, which can provide theory basis for the realization of all-weather about free space optical communication systems.

关 键 词：自由空间光通信 稳定性 OptiSystem仿真 光功率分配器 

分 类 号：TN929.1[电子电信—通信与信息系统]