摘要
利用薛定鄂非线性传输方程和分步傅立叶数值方法,仿真了多种波形的光脉冲在几种不同类型的光纤中的传播,从而得到结果:在DCF光纤和双曲正割型脉冲的条件下,能在较短的距离上获得理想的压缩比;在HNLF光纤和双曲正割型脉冲的条件下,能获得更低的压缩比。并观察到二阶超高斯脉冲在压缩前有光波分裂的现象。
Using general Schroedinger nonlinear transmission equation and split-step Fourier method, the transmission of some kinds of pulses were simulated on several kinds of fibers, and on the point of view of the frequence chirp, the compressed actions of the pulse, which were influenced by the beginning chirp, the pulse shape and the nonlinear effect, were analyzed. During doing those work, a phenomenon of the pulse split-off was observed when the 2-order super-Gauss pulse was simulatly transmitted in any kind of fiber. Moreover, the simulative result shows ： under adopting DCF and Sech function, the lower （σ/σ0） min can be achieved at shortest distance ; and under HNLF and Sech function, the lowest （σ/σ0） min can be achieved.
出处
《光通信技术》
CSCD
北大核心
2011年第3期36-39,共4页
Optical Communication Technology
基金
973计划(2010CB328206)资助
863计划(2008AA01Z215)资助
关键词
光脉冲
压缩效应
频率啁啾
非线性效应
optical pulse
compressed effect
frequence chirp
pulse shap
nonlinear effect
作者简介
曹继红（1978-），男，博士，讲师，主要从事高速光通信系统和全光网方面的教学和研究工作。
