摘要
提出一种在单模光纤正常色散区由连续波产生超短光脉冲串的新方法。即让连续波和一个波长位于光纤正常色散区的调制脉冲串在光纤中同时传输，交叉相位调制效应和群速度色散效应的相互作用能使连续波演化成一串超短光脉冲，其脉冲宽度比调制脉冲串中的脉宽要小得多。本文还通过计算机模拟，对这一方法进行了全面的考察和分析。结果表明，该方法不仅实用。
A new method for ultrashort optical pulse train generation from a cw signal in the normal dispersion regime of optical fibers is suggested. It consists of copropagating a cw signal with a modulating pulse train at a different frequency in the normal dispersion regime of an optical fiber. The cross phase modulation, imposed by the modulating pulse train on the cw signal, can induce the generation of ultrashort pulse train from the cw signal. Numerical simulations show that the method works well under realistic practical conditions.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1997年第7期830-836,共7页
Acta Optica Sinica
基金
广东省自然(青年)科学基金
关键词
单模光纤
交叉相位调制
超短光脉冲
光纤元件
single mode fibers, cross phase modulation, ultrashort optical pulses.
