The Transmission Performance of Non-zero Dispersion Shifted Fiber Communication Systems Using In-line Phase-sensitive Amplifiers  

作　　者：LINHong-rong CHENRu-quan 

机构地区：[1]DepartmentoifCommunicationEngineering,NanjingUniversityoifPostsandTelecommunications,Nanjing210003,P.R.China [2]DepartmentoifCommunicationEngineering,NanjingUniversityoifPostsandTelecommunications,Nanjin

出　　处：《The Journal of China Universities of Posts and Telecommunications》2001年第2期5-10,共6页中国邮电高校学报（英文版）

基　　金：SupportedbytheNaturalScienceFoundationofJiangsuProvince

摘　　要：This paper focuses on the non zero dispersion shifted fiber optical transmission system which employs cascaded in line Phase sensitive Amplifiers ( PSAs ). By computer simulation, we have revealed that the eye penalty of high speed signal pulses increases with the accretion of dispersion and the transmission distance limited by Intersymbol Interference ( ISI ) of signals varies with the spacing and average output power of amplifiers for positive and negative fiber dispersion. The analysis shows that although PSA can compensate for both positive and negative dispersion, it is only valid for small dispersion coefficient fiber. Owing to the effect of Self phase modulation ( SPM ), the ISI limited transmission distance of positive dispersion fiber is much longer than that of negative dispersion fiber. In addition, for positive fiber dispersion, there is an optimum value of average output signal power from PSA leading to the longest ISI limited transmission distance.This paper focuses on the non zero dispersion shifted fiber optical transmission system which employs cascaded in line Phase sensitive Amplifiers ( PSAs ). By computer simulation, we have revealed that the eye penalty of high speed signal pulses increases with the accretion of dispersion and the transmission distance limited by Intersymbol Interference ( ISI ) of signals varies with the spacing and average output power of amplifiers for positive and negative fiber dispersion. The analysis shows that although PSA can compensate for both positive and negative dispersion, it is only valid for small dispersion coefficient fiber. Owing to the effect of Self phase modulation ( SPM ), the ISI limited transmission distance of positive dispersion fiber is much longer than that of negative dispersion fiber. In addition, for positive fiber dispersion, there is an optimum value of average output signal power from PSA leading to the longest ISI limited transmission distance.

关 键 词：phase  sensitive amplifier group velocity dispersion dispersion compensation ISI   limited distance 

分 类 号：TN929.11[电子电信—通信与信息系统]