光子晶格中离散孤子传输特性的研究

Research of discrete soliton propagation in photonic lattice

离散孤子标志着从线性到非线性、从连续到非连续、从非相干到非相干,人们对孤子的认识实现了一个飞跃。研究了产生离散孤子的方法,在晶体外加上合适的电压时离散孤子会存在。还研究了离散孤子在晶体传输中的传输和晶格周期、晶格深度以及外加电压等对离散孤子形成的影响。运用交替隐式差分法(ADI-BPM)进行数值分析。

Discrete solitons indicates that from linear to nonlinear,from continuous to discontinuous,from the coherent to the incoherent,Human＇s understanding of the soliton have achieved a leap.The method have studied which can produce optical discrete solitons,and proved that photovoltaic crystal in which the existence of discrete soliton under the right direction voltage applied.Then researched of discrete solitons＇s propagation which have the behavior of discrete and diffraction in the light-induced photonic crystal,and we used the alternative implicit difference method（ADI-BPM） numerical analysis of the propagation of discrete soliton and studied the parameters wich can effect the formation of dicrete soliton,such as the periodic lattice,the lattice depth,the applied voltage.