Gap solitons in quadratically nonlinear gratings: Beyond the cascading limit

被引：5

作者：

Iizuka, T ^{[1
]}

de Sterke, CM

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Ctr Opt Sci, Canberra, ACT 0200, Australia

[2] Ehime Univ, Fac Sci, Dept Phys, Matsuyama, Ehime 7908577, Japan

[3] Univ Sydney, Sch Phys, Australian Photon Cooperat Res Ctr, Sydney, NSW 2006, Australia

来源：

PHYSICAL REVIEW E | 2000年 / 62卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.62.4246

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：

We consider pulse propagation in quadratically nonlinear gratings. Assuming that the phase mismatch between the fundamental and the second-harmonic frequencies delta k is large, we present a perturbation method in delta k(-1). In the well known cascading limit, terms to delta k(-1) are kept; here we keep terms to delta k(-2), which lends to another type of coupled mode equations. Numerical calculation of the full equations support our theoretical results.

引用

页码：4246 / 4250

页数：5

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