高阶色散效应对光纤中高斯光脉冲的影响  

Influence of High-order Dispersion on Gauss Optical Pulse in Optical Fiber

作　　者：黄天水[1] 曹文华[1] 尹新付[1] 郭力争[1] 

机构地区：[1]五邑大学信息学院,广东江门529020

出　　处：《半导体光电》2007年第4期564-567,共4页Semiconductor Optoelectronics

基　　金：广东省自然科学基金资助项目(06029820)

摘　　要：考虑光纤色散三阶效应,推导出无啁啾的高斯脉冲沿光纤传输时脉冲变化的表达式,利用对称分步傅里叶方法(SSFM)求解非线性薛定谔方程(NLS),探讨了三阶色散高斯光脉冲传输的影响。数值研究结果表明三阶色散会使光脉冲形状发生畸变,会在其前沿或后沿附近形成非对称的振荡结构。The analytic expression was derived by taking into account the third-order dispersion as a Gaussian pulse without chirp propagating along the single-mode fiber. The effects of third-order dispersion on Gaussian pulses propagation in optical fiber were studied by using symmetrical split-step Fourier method （SSFM） for solving the nonlinear Schroedinger equation （NLS）. Numerical experiments show that the third-order dispersion generates distortion to the optical pulse shape with an unsymmetrical structure at the front or back edge.

关 键 词：非线性薛定谔方程 对称分步傅里叶法 高斯脉冲 三阶色散 

分 类 号：TN929.11[电子电信—通信与信息系统]