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相移控制能有效的避免孤子间的相互作用.通过利用符号计算和双线性方法,本文解析研究用于描述色散渐变光纤传输特点的非线性Schr?dinger方程,并得到该方程的双孤子解.基于所得到的双孤子解,通过研究发现,当色散渐变光纤中的群速度色散呈Gauss型变化时,可以利用该类光纤实现孤子相移控制,从而避免孤子相互作用,提高光通信系统中信号传输质量.此外,本文还将讨论色散渐变光纤中各类参数对相移控制的影响.本文结论还有助于逻辑门和全光开光的研究.
Phase shift control can effectively avoid the interaction between solitons.By using the symbolic computation and bilinear method, this paper analyzes the nonlinear Schr? Dinger equation used to describe the characteristics of dispersion-tapered optical fiber transmission and obtains the double soliton solution Based on the double soliton solution obtained, it is found through research that when the group velocity dispersion in a chromatic dispersion gradient fiber changes in the Gauss type, this kind of optical fiber can be used to realize the soliton phase shift control so as to avoid the soliton interaction and improve the optical communication system Signal transmission quality.In addition, this article will also discuss the impact of various parameters in the dispersion-tapered fiber on the phase-shift control.This paper also contributes to the study of logic gates and all-optical ON.