激光通信系统中的光源调制技术研究  

Laser Modulation Techniques in FSO System

作　　者：王弟男[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《光机电信息》2011年第9期59-63,共5页OME Information

摘　　要：在信息技术、网络技术、激光器及探测器技术的高速发展和推动下,激光通信作为一种频带宽、速度快、不受电磁干扰和高保密性的通信技术方兴未艾,在军事和民用领域都具有巨大应用潜力。光源和探测器是激光通信系统中影响通信速率、通信距离和误码率的关键因素。本文论述了激光通信系统中光源的选择及针对选用的光源所采用的几种常用调制方式,并对各种调制方式在平均功率消耗、平均带宽需求及包误码率方面进行了对比。With the high speed development and driving of information technology,internet technology,laser and detector technology,FSOC system has shown its great potential in both military and commercial field as a communication method with high speed,high bandwidth,immunity to EMI and better security property.Light source and detectors are the key factors in improving data rate,communication distance and bit error rate performance in FSOC system.The choice of the light source and modulation methods used for the choice source were discussed in this paper.Comparison among the modulation methods in the aspect of average power consumption,average bandwidth requirement and packet error rate performance was also presented.

关 键 词：激光通信 激光器 调制 

分 类 号：TN929.1[电子电信—通信与信息系统]