LiNbO3强度调制器的光脉冲整形应用

摘要

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 aad the ouput DC extinction ratio is better than 36dB.The shaped optical pulses at about nanosecood such as a square pulse and a concavity pulse and others are created. The contrast of concavity pulse is bettr than 1O0:1.%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LiNbO3强度调制器特性,设计出一种整形方法,采用一级LiNbO3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.