基于As-S硫系光纤的喇曼全光波长转换技术研究  

Research on Raman all optical wavelength conversion based on As-S chalcogenide fiber

作　　者：巩稼民[1] 赵云[1] 姜小波[1] 李晨[1] 左旭[2] 

机构地区：[1]西安邮电大学电子工程学院,西安710121 [2]西安邮电大学通信与信息工程学院,西安710121

出　　处：《光通信技术》2015年第9期36-38,共3页Optical Communication Technology

基　　金：西安邮电大学研究生创新基金项目(ZL2013-14)资助

摘　　要：基于光纤中前向瞬态受激喇曼散射效应分析理论,对硫系光纤喇曼波长转换进行了数值分析。同时,研究分析了波长转换过程中待转换光波长和硫系光纤长度对转换后信号光获得增益及波长转换效率的影响。结果表明:在探测光波长不变时,随着光纤长度增加探测光获得增益和波长转换效率呈现先增大后减小的趋势,并得到最优光纤长度为23m,且获得的最大增益和最优转换效率为20.72d B和-23.087d B,为全光波长转换提供了新的可选方案及理论依据。The Raman wavelength conversion is studied and numerically demonstrated based on the theory of forward transient stimulated Raman scattering in chalcogenide fiber, which has higher nonlinear coefficient. Meanwhile, the gain and wavelength conversion efficiency are analyzed caused by the probe wavelength and chalcogenide fiber length. The results show that the probe wavelength is fixed, with the increase of As-S fiber length, the gain and wavelength conversion efficiency are increased firstly and then decreased. The optimum fiber length is 23m, the maximum gain of 20.72dB and the maximum optimal conversion efficiency of -23.087dB are obtained, respectively. It provides a new optional scheme and theoretical basis for all-optical wavelength conversion.

关 键 词：受激喇曼散射 全光波长转换 硫系光纤 增益 波长转换效率 

分 类 号：TN929.11[电子电信—通信与信息系统]