The fiber propagation model can be described by the nonlinear Schrodinger equation, and the split-step Fourier method is used extensively to solve the pulse-propagation problem.

光纤传输模型用非线性薛定谔方程描述，利用分步傅立叶方法可计算光脉冲在光纤中的传输。

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This paper will use small signal analysis and split-step Fourier to solve the complex nonlinear Schrodinger equation (NLSE).

本文将结合分步傅里叶方法和小信号分析法来求解复杂的非线性薛定谔方程(NLSE)。

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A novel numerical algorithm SSFD (split-step finite difference) has been presented for solving nonlinear pulse propagation equation.

提出了一种新型的分步有限差分(SSFD)算法来求解非线性锁模脉冲传输方程。

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In Lebanon, the population was more split, with just a slight majority wanting him to step down.

CNN: Jordan grants asylum to Syrian pilot who defects

Some Anglicans in the island have petitioned the Archbishop of Canterbury to step in over concerns the incident could lead to a widening split in the church.

BBC: The Very Reverend Bob Key