期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 120, 期 -, 页码 697-719出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2017.12.020
关键词
Optical fiber; Attosecond pulses; Higher-order nonlinear Schrodinger equation; Soliton solutions; Elastic interaction
资金
- National Natural Science Foundation of China [11772017]
- Fundamental Research Funds for the Central Universities [50100002016105010]
Under investigation in this paper is a sextic nonlinear Schrodinger equation, which can describe the attosecond pulses in an optical fiber. The Nth-order bright and dark soliton solutions are derived via the Hirota method. We demonstrate that the interaction between the two solitons is elastic unless the solitons propagate with the same velocities. Meanwhile, mathematical expressions of the amplitude, velocity and phase shift of each soliton are given under five cases. We reveal that two interactive bright solitons can evolve to the parallel-state solitons or bound solitons when the two solitons have the same velocities while the interaction of the dark solitons can not generate the bound solitons. Furthermore, if two branches of the second-order solitons possess the identical wave numbers and angular frequencies, the second-order solitons will degenerate into the first-order soliton. (C) 2017 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据