Weighted nonlinear phase shift with group velocity dispersion to assess the nonlinear penalty in C+L band long-haul fiber optical amplified transmission link  

作　　者：冯雪 刘小明 

机构地区：[1]Department of Electronic Engineering,Tsinghua University,Beijing 100084

出　　处：《Chinese Optics Letters》2008年第7期483-486,共4页中国光学快报（英文版）

摘　　要：To assess the penalty due to nonlinear effect in C＋L band long-haul optical amplified transmission link, a new parameter of modified nonlinear phase shift （ФD） is proposed, which is the accumulated nonlinear phase shift weighted by a normalized group velocity dispersion （GVD）. Based on the numerical simulation result of broadband long-haul hybrid Raman/erbium-doped fiber amplified transmission line, it is validated that CD is more reasonable and suitable than the previous proposed nonlinear phase shift （ФNL） for broadband applications.To assess the penalty due to nonlinear effect in C＋L band long-haul optical amplified transmission link, a new parameter of modified nonlinear phase shift （ФD） is proposed, which is the accumulated nonlinear phase shift weighted by a normalized group velocity dispersion （GVD）. Based on the numerical simulation result of broadband long-haul hybrid Raman/erbium-doped fiber amplified transmission line, it is validated that CD is more reasonable and suitable than the previous proposed nonlinear phase shift （ФNL） for broadband applications.

关 键 词：Computer simulation Dispersion (waves) Light velocity Telecommunication systems 

分 类 号：O437[机械工程—光学工程]