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The propagation of an ultrashort optical pulse in WDM system

机译:WDM系统中超短光脉冲的传播

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This paper begins with a brief description of the nonlinear Schroedinger equation (NLSE). Then split-step Fourier transform method (SSFT) is used to simulate the pulse evolution when high order group dispersion and high order nonlinear effect are considered. Different phenomena induced by high order group dispersion are discussed, where the effect of the polarity of the pulse chirp, the third-order dispersion coefficient, and the effect of the high-order dispersion on self-phase modulation (SPM) are also discussed, respectively. For the high power density in the wavelength diversion multiplexing (WDM) system, some phenomena induced by high-order nonlinearity such as self-steepening are simulated, and qualitative analysis is given at the same time.
机译:本文首先简要介绍了非线性Schroedinger方程(NLSE)。当考虑高阶群色散和高阶非线性效应时,采用分步傅里叶变换方法(SSFT)来模拟脉冲的演化。讨论了由高阶群色散引起的不同现象,其中还讨论了脉冲chi的极性,三阶色散系数以及高阶色散对自相位调制(SPM)的影响,分别。对于波分复用(WDM)系统中的高功率密度,模拟了由高阶非线性引起的一些现象,例如自陡化,并同时进行了定性分析。

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