In this paper, the supercontinuum generation in an optical fiber with forward and backward Pearcey-Gaussian pulses near the zero-dispersion wavelength is investigated. By using the split-step Fourier transform to solve the generalized nonlinear Schrödinger equation (GNLSE), we have shown an interesting phenomenon that the spectrum bandwidth of the forward Pearcey-Gaussian pulse is broader than that from hyperbolic secant pulse with the same parameters. By investigating the time–frequency dynamics of the pulse propagation, the underlying mechanism is analyzed.

中文翻译：

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光纤中皮尔西-高斯脉冲产生的超连续谱

在本文中，研究了在零色散波长附近具有向前和向后皮尔西-高斯脉冲的光纤中的超连续谱的产生。通过使用分步傅里叶变换来求解广义非线性Schrödinger方程（GNLSE），我们发现了一个有趣的现象，正向Pearcey-Gaussian脉冲的频谱带宽比具有相同参数的双曲正割脉冲的频谱带宽要宽。通过研究脉冲传播的时频动态，分析了潜在的机制。