Numerical analysis for four-wave mixing based wavelength conversion of differential phase-shift keying signals  

作　　者：贾亮 张帆 李明 刘育梁 陈章渊 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, Peking University [2]Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2009年第7期617-620,共4页中国光学快报（英文版）

基　　金：supported by the National "863"Program of China (Nos. 2006AA01Z253 and 2006AA01Z261);the National Natural Science Foundation of China (Nos. 60877045 and 60736003);the Scientific Research Foundation for the Returned Overseas Chinese Scholars form the Ministy of Education of China;the support from Alexander von Humboldt Foundation

摘　　要：We numerically investigate the main constrains for high efficiency wavelength conversion of differential phase-shift keying （DPSK） signals based on four-wave mixing （FWM） in highly nonlinear fiber （HNLF）. Using multi-tone pump phase modulation techniques, high efficiency wavelength conversion of DPSK signals is achieved with the stimulated BriIlouin scattering （SBS） effects effectively suppressed. Our analysis shows that there is a compromise between conversion efficiency and converted idler degradation. By optimizing the pump phase modulation configuration, the converted DPSK idler＇s degradation can be dramatically decreased through balancing SBS suppression and pump phase modulation degradation. Our simulation results also show that these multi-tone pump phase modulation techniques are more appropriate for the future high bit rate systems.We numerically investigate the main constrains for high efficiency wavelength conversion of differential phase-shift keying （DPSK） signals based on four-wave mixing （FWM） in highly nonlinear fiber （HNLF）. Using multi-tone pump phase modulation techniques, high efficiency wavelength conversion of DPSK signals is achieved with the stimulated BriIlouin scattering （SBS） effects effectively suppressed. Our analysis shows that there is a compromise between conversion efficiency and converted idler degradation. By optimizing the pump phase modulation configuration, the converted DPSK idler＇s degradation can be dramatically decreased through balancing SBS suppression and pump phase modulation degradation. Our simulation results also show that these multi-tone pump phase modulation techniques are more appropriate for the future high bit rate systems.

关 键 词：Conversion efficiency DEGRADATION Frequency modulation Optical frequency conversion Phase shift Phase shift keying PUMPS Stimulated Brillouin scattering 

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]