Dark incoherent spatial solitons in logarithmically saturable nonlinear media  

作　　者：张贻齐 卢克清 张美志 李可昊 刘爽 张彦鹏 

机构地区：[1]State Key Laboratory of Transient Optics and Photonics,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences [2]Graduate School of the Chinese Academy of Sciences [3]Optoelectronic Technology Department–Optoelectronic Tracking Technology Research Center,Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences [4]Department of Electronic Science and Technology, Xi’an Jiaotong University

出　　处：《Chinese Physics B》2009年第6期2359-2363,共5页中国物理B（英文版）

基　　金：Project supported by the Major Program of the National Natural Science Foundation of China (Grant No 10674176)

摘　　要：This paper studies numerically the dark incoherent spatial solitons propagating in logarithmically saturable nonlinear media by using a coherent density approach and a split-step Fourier approach for the first time. Under odd and even initial conditions, a soliton triplet and a doublet are obtained respectively for given parameters. Simultaneously, coherence properties associated with the soliton triplet and doublet are discussed. In addition, if the values of the parameters are properly chosen, five and four splittings from the input dark incoherent spatial solitons can also form. Lastly, the grayness of the soliton triplet and that of the doublet are studied, in detail.This paper studies numerically the dark incoherent spatial solitons propagating in logarithmically saturable nonlinear media by using a coherent density approach and a split-step Fourier approach for the first time. Under odd and even initial conditions, a soliton triplet and a doublet are obtained respectively for given parameters. Simultaneously, coherence properties associated with the soliton triplet and doublet are discussed. In addition, if the values of the parameters are properly chosen, five and four splittings from the input dark incoherent spatial solitons can also form. Lastly, the grayness of the soliton triplet and that of the doublet are studied, in detail.

关 键 词：incoherent spatial solitons coherence length logarithmically nonlinear media 

分 类 号：O437[机械工程—光学工程] TN919.32[理学—光学]