Spatial-spectral vortex solitons in quadratic lattices

被引：2

作者：

Xu, Zhiyong ^{[1
]}

Sukhorukov, Andrey A. ^{[1
]}

机构：

[1] Australian Natl Univ, Ctr Ultra High Bandwidth Devices Opt Syst CUDOS, Nonlinear Phys Ctr, Res Sch Phys & Engn, Canberra, ACT 0200, Australia

来源：

OPTICS LETTERS | 2009年 / 34卷 / 08期

基金：

澳大利亚研究理事会;

关键词：

DISCRETE; SYSTEMS;

D O I：

10.1364/OL.34.001168

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We predict the existence of spatial-spectral vortex solitons in one-dimensional periodic waveguide arrays with quadratic nonlinear response. In such vortices the energy flow forms a closed loop through the simultaneous effects of phase gradients at the fundamental frequency and second-harmonic fields and the parametric frequency conversion between the spectral components. The linear stability analysis shows that such modes are stable in a broad parameter region. (C) 2009 Optical Society of America

引用

页码：1168 / 1170

页数：3

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