Some types of dark soliton interactions in inhomogeneous optical fibers |
| |
Authors: | Yujia Zhang Chunyu Yang Weitian Yu Mengli Liu Guoli Ma Wenjun Liu |
| |
Institution: | 1.State Key Laboratory of Information Photonics and Optical Communications, and School of Science,Beijing University of Posts and Telecommunications,Beijing,China |
| |
Abstract: | Dark solitons are the subject of intense theoretical and experimental studies in nonlinear optics due to their unique characteristics compared with bright solitons. In this paper, the variable coefficient high-order nonlinear Schrödinger equation in the inhomogeneous optical fiber is investigated. Via the Hirota bilinear method and symbolic computation, the analytic dark two-soliton solutions are obtained. With the suitable choices of functions and coefficients for the obtained dark two-soliton solutions, some new phenomena are presented for the first time. The influences on phases and amplitudes of soliton interactions are detailed analyzed. Moreover, sets of double-triangle structures and methods of changing the propagation direction of dark solitons are introduced. Finally, by choosing suitable functions of the fourth-order dispersion parameter, the arch-structure and M-structure interactions are revealed. Results may be potentially useful in designing all-optical switches and optical fibers. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|