Title

Optical spatial solitons at the interface between two dissimilar periodic media: Theory and experiment

Authors

Authors

S. Suntsov; K. G. Makris; D. N. Christodoulides; G. I. Stegeman; R. Morandotti; M. Volatier; V. Aimez; R. Ares; E. H. Yang;G. Salamo

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

DISCRETE SURFACE SOLITONS; WAVE-GUIDE ARRAYS; LATTICE SOLITONS; MODES; LIGHT; Optics

Abstract

Discrete spatial solitons traveling along the interface between two dissimilar one-dimensional arrays of waveguides were observed for the first time. Two interface solitons were found theoretically, each one with a peak in a different boundary channel. One evolves into a soliton from a linear mode at an array separation larger than a critical separation where-as the second soliton always exhibits a power threshold. These solitons exhibited different power thresholds which depended on the characteristics of the two lattices. For excitation of single channels near and at the boundary, the evolution behavior with propagation distance indicates that the solitons peaked near and at the interface experience an attractive potential on one side of the boundary, and a repulsive one on the opposite side. The power dependence of the solitons at variable distance from the boundary was found to be quite different on opposite sides of the interface and showed evidence for soliton switching between channels with increasing input power. (c) 2008 Optical Society of America.

Journal Title

Optics Express

Volume

16

Issue/Number

14

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

10480

Last Page

10492

WOS Identifier

WOS:000257564100054

ISSN

1094-4087

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