Low-amplitude vector screening solitons  

作　　者：卢克清 朱香平 赵卫 杨延龙 李金萍 张彦鹏 张君昌 

机构地区：[1]State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics andPrecision Mechanics, Chinese Academic of Sciences, Xi'an 710068 [2]State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710068 [3]Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049 [4]Northwestern Polytechnical University, Xi'an 710072e show self-coupled and cross-coupled vector beam evolution equations in the low-amplitude regime for screening solitons, which can exhibit the analytical solutions of bright-bright and dark-dark vector solitons. Our analysis indicates that these self-coupled vector solitons are obtained irrespective of the intensities of the two optical beams, whereas these cross-coupled vector solitons can be established when the intensities of the two optical beams are equal. Relevant examples are provided where the photorefractive crystal is lithium niobate (LiNbO3). The stability properties of these vector solitons have been investigated numerically and it has been found that they are stable.

出　　处：《Chinese Optics Letters》2004年第8期483-485,共3页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Sci-ence Foundation of China (No. 60078004);by the Director Foundation of Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences.

摘　　要：We show self-coupled and cross-coupled vector beam evolution equations in the low-amplitude regime for screening solitons, which can exhibit the analytical solutions of bright-bright and dark-dark vector solitons. Our analysis indicates that these self-coupled vector solitons are obtained irrespective of the intensities of the two optical beams, whereas these cross-coupled vector solitons can be established when the intensities of the two optical beams are equal. Relevant examples are provided where the photorefractive crystal is lithium niobate (LiNbO3). The stability properties of these vector solitons have been investigated numerically and it has been found that they are stable.We show self-coupled and cross-coupled vector beam evolution equations in the low-amplitude regime for screening solitons, which can exhibit the analytical solutions of bright-bright and dark-dark vector solitons. Our analysis indicates that these self-coupled vector solitons are obtained irrespective of the intensities of the two optical beams, whereas these cross-coupled vector solitons can be established when the intensities of the two optical beams are equal. Relevant examples are provided where the photorefractive crystal is lithium niobate (LiNbO3). The stability properties of these vector solitons have been investigated numerically and it has been found that they are stable.

关 键 词：Laser beam effects Lithium niobate Nonlinear equations Photorefractive materials 

分 类 号：O431.2[机械工程—光学工程]