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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Dark and antidark soliton solutions in the modified nonlinear Schr?dinger equation with distributed coefficients in inhomogeneous fibers
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Dark and antidark soliton solutions in the modified nonlinear Schr?dinger equation with distributed coefficients in inhomogeneous fibers

机译：非均质纤维中具有分布系数的修正非线性薛定ding方程中的暗和反暗孤子解

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摘要

We study a modified nonlinear Schr?dinger model with distributed dispersion, self-phase modulation, self-steepening and linear gain/loss, which describes the ultrashort pulse propagating dynamics in inhomogeneous fibers. The dark and antidark soliton solutions are obtained with Hirota's bilinear method. The propagation dynamics and collision behaviors of the dark and antidark soliton pulses in inhomogeneous fibers are discussed by analyzing some important physical quantities and through graphical illustration. The inhomogeneous effects on the evolution and interaction for dark and antidark solitons are considered by virtue of the presented soliton solutions with distributed coefficients. Our analytical results could be applied to research on dark and antidark solitons in the dispersion-managed fiber system.
机译：我们研究了一种具有分布色散，自相位调制，自加陡度和线性增益/损耗的改进的非线性Schrdinger模型，该模型描述了超短脉冲在非均质纤维中的传播动力学。用Hirota的双线性方法获得暗和反暗孤子解。通过分析一些重要的物理量并通过图解说明，讨论了暗和反暗孤子脉冲在不均匀光纤中的传播动力学和碰撞行为。借助提出的具有分布系数的孤子解决方案，可以考虑对暗和反暗孤子的演化和相互作用的不均匀影响。我们的分析结果可用于色散管理光纤系统中暗和反暗孤子的研究。

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