在孤子控制下两个飞秒光孤子间的相互作用

Interaction Between Two Femtosecond Optical Solitons With Soliton Control

直接运用变系数高阶非线性薛定谔方程的精确2-孤子解,来研究在孤子控制下两个飞秒光孤子间的相互作用,讨论了邻近孤子的稳定性。结果表明联合控制群速度色散分布,三阶色散分布和非线性分布能抑制两个飞秒光孤子间的相互作用,而且能避免孤子超前或滞后,在特定的孤子控制系统下,两个飞秒光孤子有良好的稳定性。

The interaction between two femtosecond optical solitons with soliton control is investigated, based on exact twosoliton solution to the generalized higher order nonlinear Schroedinger equation with variable coefficients directly. The results show that the combined effects of controlling the group velocity dispersion distribution, third-order dispersion distribution and the nonlinearity distribution may restrict the interaction between the neighboring solitons, and avoid solitons＇ advance or delay. Also, the stability of the neighboring solitons is discussed. The results prove that two femtosecond optical solitons are stable in the soliton control system.