基于双光子光折变效应的非相干耦合灰光伏孤子族

为了研究开路条件下双光子光伏光折变材料中的灰光伏孤子族,建立了光伏孤子族的动态演化方程,给出了非相干耦合灰光伏孤子族的数值解.采用数值模拟的方法,求解孤子族的数值表达式.结果表明:这种孤子族是由多束偏振方向和波长都相同的互不相干光束耦合形成的.当孤子族只有两个分量时,灰光伏孤子族可以退化成灰-灰光伏孤子对|当孤子的灰度参量取零时,灰光伏孤子族退化成暗光伏孤子族,灰-灰光伏孤子对退化成暗-暗光伏孤子对.文中采用的光伏光折变材料是LiNbO3.

Incoherently Coupled Grey Photovoltaic Soliton Families due to Two-photon Photorefractive Effect

To study the grey photovoltaic soliton families in two-photon photovoltaic photorefractive materials under open-circuit conditions,the dynamical evolution equation and the numerical solution of the grey photovoltaic soliton families were established.The existence curves of the grey photovoltaic soliton families were simulated by the numerical method.The results show that the soliton families are derived under the assumption that the multiple carrier beams share the same polarization,wavelength,and are mutually incoherent.Such grey photovoltaic soliton families reduce to grey-grey photovoltaic soliton pairs when they contain only two components.Furthermore,such grey soliton families will reduce to dark soliton families or soliton pairs when the greyness of soltion takes zero.Relevant examples were presented where the photovoltaic photorefractive material was LiNbO3.