非局域非线性介质中奇异空间光孤子传输特性研究  

Transmission characteristics of singular spatial optical soliton in nonlocal nonlinear media

作　　者：陈顺芳[1] 徐四六[1] 

机构地区：[1]湖北科技学院电子与信息工程学院,湖北咸宁437100

出　　处：《量子电子学报》2014年第2期208-212,共5页Chinese Journal of Quantum Electronics

基　　金：湖北省高校青年教师下企业计划项目(XD2012358);大学生创新创业计划项目(A6632)资助课题

摘　　要：基于非局域非线性介质中空间光孤子的理论模型,采用分部傅里叶算法,研究了空间孤子在二维非局域非线性介质中的传输特性及其稳定性。结果表明,在该介质中存在拉盖尔-高斯型的空间孤子;孤子的传输特性受非局域介质的调制系数、调制深度,以及光束的初始条件等调控,并且传输距离越大,影响越显著。研究结果对完善和充实空间孤子理论体系有重要意义.Based on the basic theoretical model of spatial optical solitons in nonlocal nonlinear medium and using the subsection Fourier algorithm, the transmission characteristics and stability of the spatial optical solitons in two-dimensional nonlocal nonlinear media were studied. The results reveal that in the medium, Laguerre-Gauss soliton （LGs） can exist. The transmission properties of soliton can be controlled by the modulation depth coefficient, as well as the initial conditions of beam condition in the nonlocal media. Furthermore. It＇s found that the bigger of the transmission distance, the greater the effect will be. The results can improve and enrich the spatial soliton theory system.

关 键 词：非线性光学 非局域非线性 空间光孤子 分部傅里叶算法 

分 类 号：O436[机械工程—光学工程]