Solitons in a third-order nonlinear Schrödinger equation with the pseudo-Raman scattering and spatially decreasing second-order dispersion
- 作者: Aseeva N.V.1, Gromov E.M.1, Onosova I.V.1, Tyutin V.V.1
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隶属关系:
- National Research University Higher School of Economics
- 期: 卷 103, 编号 10 (2016)
- 页面: 653-657
- 栏目: Methods of Theoretical Physics
- URL: https://journals.rcsi.science/0021-3640/article/view/159379
- DOI: https://doi.org/10.1134/S0021364016100027
- ID: 159379
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详细
Evolution of solitons is addressed in the framework of a third-order nonlinear Schrödinger equation (NLSE), including nonlinear dispersion, third-order dispersion and a pseudo-stimulated-Raman-scattering (pseudo- SRS) term, i.e., a spatial-domain counterpart of the SRS term, which is well known as a part of the temporal-domain NLSE in optics. In this context, it is induced by the underlying interaction of the high-frequency envelope wave with a damped low-frequency wave mode. In addition, spatial inhomogeneity of the second-order dispersion (SOD) is assumed. As a result, it is shown that the wavenumber downshift of solitons, caused by the pseudo-SRS, can be compensated with the upshift provided by decreasing SOD coefficients. Analytical results and numerical results are in a good agreement.
作者简介
N. Aseeva
National Research University Higher School of Economics
Email: vtyutin@hse.ru
俄罗斯联邦, Nizhny Novgorod, 603155
E. Gromov
National Research University Higher School of Economics
Email: vtyutin@hse.ru
俄罗斯联邦, Nizhny Novgorod, 603155
I. Onosova
National Research University Higher School of Economics
Email: vtyutin@hse.ru
俄罗斯联邦, Nizhny Novgorod, 603155
V. Tyutin
National Research University Higher School of Economics
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Email: vtyutin@hse.ru
俄罗斯联邦, Nizhny Novgorod, 603155
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