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首页> 外文期刊>Optical memory & neural networks >Computer Simulation of the Propagation of Extremely Short Femtosecond Pulse in Single-Mode Fiber with Shifted Dispersion Characteristics
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Computer Simulation of the Propagation of Extremely Short Femtosecond Pulse in Single-Mode Fiber with Shifted Dispersion Characteristics

机译：具有漂移色散特性的单模光纤中极短飞秒脉冲的传播的计算机模拟

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摘要

We present the results of theoretical study of generation of spectral supercontinuum by an extremely short femtosecond laser pulse with the central wavelength corresponding to zero dispersion, propagating in a single-mode fiber with shifted dispersion characteristics. High-order nonlinear Schrodinger equation (HONSE) is considered with higher-order terms taken into account. Numerical integration of HONSE is performed by the method of lines. Time dependence of instantaneous frequencies of the femtosecond pulse is obtained. The evolution of the pulse spectrum is calculated and the medium length dependence of the spectrum width is obtained. For study of the time-frequency dynamics of extremely short femtosecond laser pulse propagating in single-mode optical fiber with allowance for higher order terms, the Wigner transformation (WT) was used.
机译：我们介绍了在中心波长对应零色散的极短飞秒激光脉冲在具有偏移色散特性的单模光纤中传播时产生光谱超连续谱的理论研究结果。考虑了高阶项，考虑了高阶非线性Schrodinger方程（HONSE）。 HONSE的数值积分通过线法进行。获得飞秒脉冲瞬时频率的时间依赖性。计算脉冲频谱的演变并获得频谱宽度的介质长度依赖性。为了研究在允许允许高阶项的情况下在单模光纤中传播的极短飞秒激光脉冲的时频动力学，使用了Wigner变换（WT）。

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