星间激光通信中半导体激光器的准直及其测试  

The collimation and test of semiconductor lasers in the inter-satellite laser communication systems

作　　者：荣健[1] 钟晓春[2] 朱彬[3] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054 [2]西南交通大学应用物理系,四川成都610031 [3]成都大学,四川成都610106

出　　处：《云南大学学报（自然科学版）》2005年第S2期200-203,共4页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家863资助项目

摘　　要：星间光通信技术中对光束近衍射极限的准直需求,使得半导体激光器的准直成为了一个难点.本文针对星间激光通信系统的实际要求,分析了不同光源的半导体激光器结构与性能,讨论了相应的准直方案.并对1550nm半导体激光器的预准直系统的测试进行了初步的研究.The collimation of semiconductor lasers remains a challenging problem in the application of inter-satellite laser communication systems.for the reason that the divergence angles of transmits laser beams need to be compressed approaching the diffraction limitation.To meet the practical system requirements of inter-satellite laser communications,the collimation schemes are discussed based on the analysis of the structure and performance characteristics of semiconductor lasers with various light sources,and finally the preliminary research concerning how to test and evaluate a 1?550?nm semiconductor laser beam pre-collimation system is reported in this paper.

关 键 词：星间光通信 半导体激光 准直 

分 类 号：TN927.2[电子电信—通信与信息系统]