Pulse Propagation with Self-Phase Modulation in Nonlinear Chiral Fiber and Its Applications  

作　　者：Demissie Gelmecha 李俊庆 Merhawit Teklu 

机构地区：[1]Department of Physics,Harbin Institute of Technology [2]Department of Electronic Science and Technology,Harbin Institute of Technology [3]Communication Research Center,Harbin Institute of Technology

出　　处：《Chinese Physics Letters》2016年第9期43-47,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 60977032;the Program for Innovation Research of Science of Harbin Institute of Technology(PIRS-HIT)under Grant No T201407

摘　　要：From Maxwell＇s equations and Post＇s formalism, a generalized chiral nonlinear Schr6dinger equation （CNLSE） is obtained for the nonlinear chiral fiber. This equation governs light transmission through a dispersive nonlinear chiral fiber with joint action of chirality in linear and nonlinear ways. The generalized CNLSE shows a modu- lation of chirality to the effect of attenuation and nonlinearity compared with the case for a conventional fiber. Simulations based on the split-step beam propagation method reveal the role of nonlinearity with cooperation to chirality playing in the pulse evolution. By adjusting its strength the role of chirality in forming solitons is demonstrated for a given circularly polarized component. The application of nonlinear optical rotation is also discussed in an all-optical switch.From Maxwell＇s equations and Post＇s formalism, a generalized chiral nonlinear Schr6dinger equation （CNLSE） is obtained for the nonlinear chiral fiber. This equation governs light transmission through a dispersive nonlinear chiral fiber with joint action of chirality in linear and nonlinear ways. The generalized CNLSE shows a modu- lation of chirality to the effect of attenuation and nonlinearity compared with the case for a conventional fiber. Simulations based on the split-step beam propagation method reveal the role of nonlinearity with cooperation to chirality playing in the pulse evolution. By adjusting its strength the role of chirality in forming solitons is demonstrated for a given circularly polarized component. The application of nonlinear optical rotation is also discussed in an all-optical switch.

关 键 词：of on for in Pulse Propagation with Self-Phase Modulation in Nonlinear Chiral Fiber and Its Applications with that IS 

分 类 号：TN253[电子电信—物理电子学]