Evolution of dark spatial soliton in quasi-phase-matched quadratic media

被引：1
|
作者：
Wang, FY [1 ]
Chen, XF [1 ]
Chen, YP [1 ]
Xia, YX [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, State Key Lab Fiberopt Local Area Commun Networks, Shanghai 200240, Peoples R China
来源：
Nonlinear Optical Phenomena and Applications | 2005年 / 5646卷
关键词：
dark spatial soliton; cascaded quadratic nonlinearity;
D O I：
10.1117/12.574361
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We theoretically investigate the evolvement of dark spatial soliton with cascading quadratic nonlinearity in quasi-phase-matched second harmonic generation. It is shown that the dark solitary wave can propagate stably when background intensity is large enough, in which diffraction of beam can be balanced by the cascading quadratic nonlinearity. We also analyze the influence of phase-mismatch on the stability of dark soliton propagation.
引用
收藏
页码：369 / 377
页数：9
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