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Formation and propagation of chirped optical soliton

机译:optical光孤子的形成与传播

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We give the expression of the input experimental pulse, numerically study formation and propagation of chirped soliton according to the nonlinear propagation theory by use of the split-step Fourier method. The numerical results are consistent with the experimental data. The pulse can evolve into chirped soliton after propagating over 3.5 dispersion length, the temporal FWHM and chirp gradually decreases with increase of input power. The temporal FWHM of chirped soliton executes a kind of damped oscillation with increase of propagation distance whose period and amplitude decrease with increase of input power, the temporal waveform always maintain near hyperbolic secant pulse during nonlinear propagation.
机译:我们给出了输入实验脉冲的表达式,利用分步傅里叶方法,根据非线性传播理论,对study孤子的形成和传播进行了数值研究。数值结果与实验数据吻合。脉冲在3.5的色散长度上传播后可演化为chi孤子,随着输入功率的增加,瞬时FWHM和chi逐渐减小。 so孤子的时间FWHM随着传播距离的增加而执行阻尼振荡,其周期和幅度随着输入功率的增加而减小,在非线性传播过程中,时间波形始终保持在双曲正割脉冲附近。

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