Evolution of Dark Spatial Soliton in Quasi-phase-matched Quadratic Media

被引:0
作者
WANG FeiYu
CHEN XianFeng
CHEN YuPing
YANG Yi
XIA YuXing Department of Physics the State Key Laboratory on FiberOptic Local Area Communication Networks and Advanced Optical Communication Systems Shanghai Jiao Tong University Shanghai China [200240 ]
机构
关键词
dark spatial soliton; cascaded quadratic nonlinearity;
D O I
暂无
中图分类号
O572.2 [粒子物理学];
学科分类号
070202 ;
摘要
<正> We theoretically investigate the evolvement of dark spatial soliton with cascading quadratic nonlinearityin quasi-phase-matched second harmonic generation. It is shown that the dark solitary wave can propagate stablywhen background intensity is large enough, in which diffraction of beam can be balanced by the cascading quadraticnonlinearity. We also analyze the influence of phase-mismatch on the stability of dark soliton propagation.
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页码:732 / 734
页数:3
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