期刊
OPTIK
卷 145, 期 -, 页码 644-649出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2017.08.034
关键词
Dipole soliton; Dispersion; Kerr law
类别
资金
- Young Foundation of Wuhan Donghu University [2017dhzk001]
- National Science Foundation of Hubei Province in China [2015CFC891]
- Department of Mathematics and Statistics at Tshwane University of Technology
- South African National Foundation [92052 IRF1202210126]
- Qatar National Research Fund (QNRF) [NPRP 8-028-1-001]
We investigate the extended nonlinear Schrodinger equation with higher-order odd and even terms. The model includes additional higher-order dispersion and nonlinear terms that are most important for applications in fiber optics, in the case of the Heisenberg spin chain, and for ocean waves. Special exact solutions in the form of a dipole soliton is obtained, by adopting a complex amplitude ansatz composed of the product of bright and dark solitary waves. The conditions on the system parameters for the existence of this localized structure are also reported. The derived solution characteristically exists due to a balance among physical effects of different nature. Numerical results and discussions are also presented. (C) 2017 Elsevier GmbH. All rights reserved.
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