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首页> 外文期刊>Journal of Optics >Waveguiding effect on optical spatial solitons in centrosymmetric photorefractive materials
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Waveguiding effect on optical spatial solitons in centrosymmetric photorefractive materials

机译：中心对称光折变材料中光空间孤子的波导效应

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摘要

Photorefractive solitons have been studied in a waveguide that is made of centrosymmetric material. The dynamical equations pertaining to characteristics of solitons have been derived under paraxial ray and Wentzel-Kramers-Brillouin (WKB) approximations. It has been predicted that the planar waveguide structure enhances self-focusing effect and reduces the threshold power requirement for soliton formation. The waveguide that is embedded in the photorefractive crystal leads to the trapping of low power solitary wave which otherwise would not have formed spatial solitons at this low power in this material. The minimum requirement of power for self-trapping in the material decreases with the increase in the value of waveguide co-efficient. The existence of bistable states has also been predicted.
机译：已经在由中心对称材料制成的波导中研究了光折变孤子。在傍轴射线和Wentzel-Kramers-Brillouin（WKB）近似下，已经导出了与孤子特性有关的动力学方程。已经预料到，平面波导结构增强了自聚焦效果并降低了孤子形成的阈值功率要求。嵌入光折射晶体中的波导导致捕获低功率孤立波，否则该低功率孤立波将不会以这种低功率在这种材料中形成空间孤子。随着波导系数值的增加，材料中自陷的最低功率要求降低。还已经预测了双稳态的存在。

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