闭路光伏光折变聚合物中非相干耦合亮-暗空间孤子对  

Incoherently Coupled Bright-Dark Spatial Soliton Pairs in Closed-Circuit Photovoltaic Photorefractive Polymer

作　　者：吉选芒[1] 苏艳丽[1] 姜其畅[1] 刘劲松[2] 

机构地区：[1]山西运城学院物理与电子工程系,山西运城044000 [2]华中科技大学光电子科学与工程学院,湖北武汉430074

出　　处：《光学学报》2012年第9期211-216,共6页Acta Optica Sinica

基　　金：山西省自然科学基金(2011011003-2);山西省高校科技研究开发项目(20111125)资助课题

摘　　要：为了得到闭路光折变有机聚合物中存在非相干耦合亮-暗光伏空间孤子对,采用数值模拟的方法,对稳态情况下两束互不相干的光束,在闭路光伏光折变有机聚合物中的传播进行了研究。结果表明,具有相同偏振和相同波长的两束互不相干的光束,可在光伏光折变有机聚合物中形成非相干耦合亮-暗光伏孤子对。在给定适当参量或扰动不太大的情况下,孤子对中的亮孤子和暗孤子都能在光伏光折变有机聚合物中稳定传播。研究结果可为光折变有机聚合物空间孤子理论的发展提供理论依据。In order to obtain the incoherently coupled bright-dark photovoltaic spatial soliton pairs that can exist in closed-circuit photorefractive polymer, the propagation of two mutually incoherent optical beams in closed-circuit photorefractive polymer is numerically investigated under steady-state conditions. It is shown that incoherently coupled bright-dark photovoltaic soliton pairs can be established in the photorefractive polymer, in which the mutually incoherent incident beams have the same polarization and wavelength. The bright and dark solitons both can propagate steadily in photovoltaic photorefractive polymer under the conditions of proper parameters or small perturbation. These results provide the theoretical basis for the development of polymer spatial solitons theory.

关 键 词：非线性光学 光折变效应 光折变聚合物 亮-暗孤子对 

分 类 号：O437[机械工程—光学工程]