Spatial solitons in type II quasiphase-matched slab waveguides

被引：11
作者：
Panoiu, NC [1 ]
Mihalache, D
Rao, HL
Osgood, RM
机构：
[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
[2] Inst Atom Phys, Dept Theoret Phys, R-76900 Bucharest, Romania
[3] Univ Politecn Cataluna, ICFO Inst Ciencies Foton, ES-08034 Barcelona, Spain
来源：
PHYSICAL REVIEW E | 2003年 / 68卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.68.065603
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The existence and dynamics of one-dimensional spatial solitons formed upon propagation in quasiphase-matched gratings, through three-wave parametric interaction, is analyzed. We study the general case in which the grating exhibits a periodic modulation of both the refractive index and the second-order susceptibility. It is demonstrated that for negative effective wave vector mismatch the induced third-order nonlinearities increase the domain of soliton instability. Finally, the dependence of the efficiency of the second harmonic generation process in the soliton regime, on the parameters of the grating, is discussed.
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页数：4
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