双光子光折变介质中非相干耦合屏蔽光伏孤子族  

Incoherently coupled screening-photovoltaic spatial soliton families in two-photon photorefractive media

作　　者：吉选芒[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子程系,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：《光电子．激光》2010年第5期795-798,共4页Journal of Optoelectronics·Laser

基　　金：山西省高等学校科技开发基金资助项目(200611042)

摘　　要：为了获得有外加电场的双光子光伏光折变介质中存在着稳态非相干耦合屏蔽光伏空间孤子族的结果,对外加电场的双光子光伏光折变介质中多束偏振方向和波长都相同的互不相干光束的耦合进行了理论研究。结果表明:双光子非相干耦合屏蔽光伏孤子族可以看成是屏蔽孤子族和光伏孤子族的统一形式。当光伏场可忽略时,屏蔽光伏孤子族就转化为屏蔽孤子族;而当外加电场不存在时,屏蔽光伏孤子族相当于开路和闭路条件下的光伏孤子族;当孤子族中只含有2个光束分量时,孤子族就变为屏蔽光伏孤子对。In order to obtain the incoherently coupled screening-photovoltaic soliton families in biased two-photon photovoltaic photorefractive crystals under steady-state conditions,the coupling of multiple mutually incoherent optical beams with the same polarization and wavelength in two-photon photovoltaic photorefractive crystals is theoretically studied.The results show that the screening-photovoltaic soliton families can be considered as the united form of screening soliton families and photovoltaic soliton families.When the photovoltaic effect is negligible,the screening-photovoltaic soliton families are the screening one.If the external field is absent,the screening-photovoltaic soliton families are photovoltaic ones at the open-and closed-circuit condition.Besides,the soliton families will become the screening-photovoltaic soliton pairs when they contain only two components.

关 键 词：非线性光学 光折变效应 双光子光折变介质 空间孤子 

分 类 号：O437[机械工程—光学工程]