有外加电源的串联光折变晶体回路中的独立空间全息-哈密顿屏蔽孤子对

Separate holographic-Hamiltonian screening soliton pairs in a biased series photorefractive crystal circuit

在由两块垂直于光轴两端面镀上电极的光折变晶体和一个外加电源组成的串联光折变晶体回路中,在适当的条件下可以形成独立空间全息-哈密顿屏蔽孤子对.这种孤子对共有四种类型:明-明、暗-暗、明-暗以及暗-明.当入射光束的空间展宽尺寸远小于晶体宽度时,孤子对中的哈密顿暗孤子可以通过光感应电流影响另一个孤子,而哈密顿明孤子和全息孤子则不能影响另一孤子.

Separate holographic-Hamiltonian screening soliton pairs are predicted in a biased series photorefractive crystal circuit consisting of two photorefractive crystals connected electronically by electrode leads in a chain with a voltage source.The existence of four types of the separate soliton pairs：dark-dark,bright-dark,dark-bright and bright-bright,in such a circuit is proved.Under the limit that the spatial extent of the optical wave is much less than the width of the crystal,the Hamiltonian dark soliton can affect the other soliton by the light-induced current whereas the Hamiltonian bright soliton and holographic soliton cannot affect the other soliton in the soliton pair.