色散缓变光纤中脉冲传播特性以及调制不稳定性研究

摘要

主要研究了不同群色散剖面色散缓变光纤(DDF)中脉冲传输的展宽因子,并将DDF展宽特性的仿真结果与单模光纤(SMF)进行对比;另外分析了二阶色散以及高阶非线性效应在DDF中产生的调制不稳定性,从而对DDF做了一个较为全面的分析.%This paper mainly focuses on the broaden index of various DDF, and compares the simulated results with SMF. What's more, the studies of second order dispersion property and modulation instability induced by higher nonlinear effects in DDF are also included.