Discrete solitons in inhomogeneous waveguide arrays

被引：19

作者：

Pertsch, T ^{[1
]}

Peschel, U ^{[1
]}

Lederer, F ^{[1
]}

机构：

[1] Univ Jena, Inst Condensed Matter Theory & Opt, D-07743 Jena, Germany

来源：

CHAOS | 2003年 / 13卷 / 02期

关键词：

D O I：

10.1063/1.1562511

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The existence and dynamical properties of discrete solitons in inhomogeneous waveguide arrays with a Kerr nonlinearity are studied in two different configurations. First we investigate the effect of a longitudinal periodic modulation of the coupling strength on the dynamics of discrete solitons. It is shown that resonances of internal modes of the soliton with the longitudinal structure may lead to soliton oscillations and decay. Second we study the existence and stability of discrete solitons in arrays exhibiting a linear variation of the waveguide effective index in the transverse direction. We find that resonant coupling between conventional discrete solitons and linear Wannier-Stark states leads to the formation of so-called hybrid discrete solitons. (C) 2003 American Institute of Physics.

引用

页码：744 / 753

页数：10

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