光子晶体光纤中非线性自陡峭对高阶孤子传输的影响  

Nonlinear Self-steepening Impact on High-order Soliton Transmission in Photonic Crystal Fiber

作　　者：董琳琳[1] 杨性愉[1] 

机构地区：[1]内蒙古大学物理系,内蒙古呼和浩特010021

出　　处：《激光与红外》2008年第5期474-478,共5页Laser & Infrared

基　　金：国家自然科学基金项目(No.60468001)资助

摘　　要：采用对称分步傅里叶法数值模拟了高阶孤子在自陡峭效应的影响下,脉冲传输特性及脉冲和频谱展宽情况。另外,讨论了存在自陡峭的情况下,初始正啁啾在反常色散区,导致脉冲初始窄化,然后脉冲将有较强的展宽。初始负啁啾加强脉冲展宽。This paper using the symmetrical split-step Fourier′ method simulates the pulse of high-order solitons transmission characteristic in self-steepening effect and broadening of pulse and spectrum situation.Otherwise,discussed under the existence of self-steepening circumstances,initial positive chirped in the anomalous dispersion section,lead pulse initial narrowing,then there will be strong pulse broadening.The initial negative chirped strengthen pulse broadening.

关 键 词：光子晶体光纤 自陡峭 高阶孤子 初始啁啾 

分 类 号：TN929.11[电子电信—通信与信息系统] O437[电子电信—信息与通信工程]