LiNbO_3强度调制器的光脉冲整形应用  

The application of LiNbO_3 intensity modulator in optical pulse shaping

作　　者：赵灏[1] 谢征[1] 吕宏伟[1] 徐明阳[1] 欧阳竑[1] 刘芳[1] 

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541004

出　　处：《光通信技术》2011年第7期1-3,共3页Optical Communication Technology

摘　　要：光脉冲产生系统(前端系统)需要输出初步整形的光脉冲,电光调制器可以较好地满足该需求。根据Li NbO3强度调制器特性,设计出一种整形方法,采用一级Li NbO3强度调制器进行输出光脉冲整形,可使输出直流消光比优于36dB,可生成纳秒级方波、凹型等整形光脉冲,凹型脉冲对比度优于100:1。The optical pulse generation system（FD） needs to ouput optical pulse shaped preliminary.The electro-optic modulator can satisfy this application preferably.A method to shape optical pulse is designed according to the characteristic of LiNbO3 intensity modulator.One stage LiNbO3 intensity modulator is used in this application and the ouput DC extinction ratio is better than 36dB.The shaped optical pulses at about nanosecond such as a square pulse and a concavity pulse and others are created.The contrast of concavity pulse is better than 100：1.

关 键 词：LiNbO3强度调制器 整形脉冲 自动偏置控制 

分 类 号：TN915[电子电信—通信与信息系统]