基于不同光折变模型的亮屏蔽光伏孤子特性  

The characteristics of bright screening-photovoltaic solitons based on different photorefractive model

作　　者：姜其畅[1] 苏艳丽[1] 吉选芒[1] 

机构地区：[1]山西运城学院物理与电子工程系,山西运城044000

出　　处：《激光杂志》2009年第6期54-55,共2页Laser Journal

基　　金：山西省高等学校科技开发项目基金(200611042)资助的课题

摘　　要：通过数值模拟的方法,研究了单光子、双光子光折变模型中亮屏蔽—光伏孤子特性。结果表明:在同样的外加条件下,双光子光折变模型中亮屏蔽—光伏孤子的半峰全宽小于单光子模型,孤子中心的自偏转距离大于单光子模型。改变外加参量,双光子模型中亮光伏孤子的半峰全宽略小于单光子模型,两模型中孤子中心的自偏转距离几乎相等;单光子光折变模型与双光子光折变模型中亮屏蔽孤子的半峰全宽、自偏转距离等特性相同。The characteristics of bright screening-photovoltaic solitons are numerically investigated based on single-photon and two-photon photorefractive model.The resulted obtained indicates that,at the same conditions,the full-width at half maximum（FWHM） of bright screening-photovoltaic solitons in two-photon photorefractive model is smaller than single-photon model and the self-deflection of solitons in two-photon photorefractive model is bigger than single-photon model.After altering the conditions,the FWHM of bright photovoltaic solitons in two-photon model is smaller than single-photon model but the self-deflection of solitons is almost similar in two models.The characteristics of the FWHM and the self-deflection for bright screening solitons are sameness in two photorefractive models.

关 键 词：非线性光学 单光子光折变模型 双光子光折变模型 屏蔽—光伏孤子 

分 类 号：O437[机械工程—光学工程]