Symbolic-computation study of the perturbed nonlinear Schrodinger model in inhomogeneous optical fibers

被引:192
作者
Tian, B
Gao, YT
机构
[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
[2] Beijing Univ Aeronaut & Astronaut, State Key Lab Software Dev Environm, Beijing 100083, Peoples R China
[3] CCAST, World Lab, Beijing 100080, Peoples R China
[4] Beijing Univ Aeronaut & Astronaut, Minist Educ, Key Lab Fluid Mech, Beijing 100083, Peoples R China
[5] Beijing Univ Aeronaut & Astronaut, Natl Lab Computat Fluid Dynam, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/j.physleta.2005.05.041
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A realistic, inhomogeneous fiber in the optical communication systems can be described by the perturbed nonlinear Schrodinger model (also named as the normalized nonlinear Schrodinger model with periodically varying coefficients, dispersion managed nonlinear Schrodinger model or nonlinear Schrodinger model with variable coefficients). Hereby, we extend to this model a direct method, perform symbolic computation and obtain two families of the exact, analytic bright-solitonic solutions, with or without the chirp respectively. The parameters addressed include the shape of the bright soliton, soliton amplitude, inverse width of the soliton, chirp, frequency, center of the soliton and center of the phase of the soliton. Of optical and physical interests, we discuss some previously-published special cases of our solutions. Those solutions could help the future studies on the optical communication systems. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:228 / 236
页数:9
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