基于高非线性PCF中SSFS效应的波长变换技术研究  

Wavelength Conversion Based on Soliton Self-Frequency Shift in High Nonlinear PCF

作　　者：陆川[1] 余重秀[1] 桑新柱[1] 杨世云[1] 

机构地区：[1]北京邮电大学光通信与光电子学研究院,光通信与光波技术教育部重点实验室,北京100876

出　　处：《半导体光电》2009年第4期595-598,613,共5页Semiconductor Optoelectronics

基　　金：国家“973”计划项目(2003CB314906);北京邮电大学校级项目

摘　　要：理论分析了光子晶体光纤中孤子自频移(Soliton Self-Frequency Shift,SSFS)这一光纤的非线性效应,研究了利用SSFS实现波长变换的薛定谔方程求解问题,讨论了输入功率、PCF的长度、非线性系数等参数对波长变换范围及转换效率的影响,指出输入功率与PCF的长度相对于波长变换的输出中心波长从几纳米到几十纳米基本呈线性变化,当使用较长的PCF时,光纤中的高阶孤子和孤子分裂效应将限制波长变换的效率。基于高非线性PCF的SSFS波长变换是一种简单可行且高效的方案。The non-linear effect of soliton self-frequency shift （SSFS） in photonic crystal fiber is analyzed. The principles and the application of wavelength conversion based on SSFS are investigated. The influences of input power, length of PCF and nonlinear parameters on the shift range and conversion efficiency are discussed, indicating the linear relationship between output wavelength and length of PCF. When using long PCF, due to the high-order nonlinear effect and soliton abruption, the conversion efficiency will he limited. It is proved that SSFS-based wavelength conversion in high nonlinear PCF is a simple, practical and high-efficiencv approach

关 键 词：波长变换 孤子自频移 脉冲内拉曼散射 光子晶体光纤 

分 类 号：TN252[电子电信—物理电子学]