Propagation of bright femtosecond pulses in a nonlinear optical fibre with the third-and fourth-order dispersions

• 来源期刊: 中国物理（英文版）
• 关键词: femtosecond pulse nonlinear optical fibre higher-order dispersion
• 年，卷（期）: 2007,（6）
• 页码范围: 1526-1533
• 页数: 8页
• 语种: 英文

摘要

We solve the generalized nonlinear Schrodinger equation describing the propagation of femtosecond pulses in a nonlinear optical fibre with higher-order dispersions by using the direct approach to perturbation for bright solitons, and discuss the combined effects of the third- and fourth-order dispersions on velocity, temporal intensity distribution and peak intensity of femtosecond pulses. It is noticeable that the combined effects of the third- and fourth-order dispersions on an initial propagated soliton can partially compensate each other, which seems to be significant for the stability controlling of soliton propagation features.