Interaction of counterpropagating discrete solitons in a nonlinear one-dimensional waveguide array
Publication date
2007-03
Document type
Research article
Author
Organisational unit
Technische Universität Clausthal
Scopus ID
Series or journal
Optics letters
Periodical volume
32
Periodical issue
5
First page
512
Last page
514
Part of the university bibliography
Nein
Abstract
We experimentally investigate the interaction of counterpropagating discrete solitons in a one-dimensional waveguide array in photorefractive lithium niobate. While for low input powers only weak interaction and formation of counterpropagating vector solitons are observed, for higher input powers a growing instability results in discrete lateral shifting of the formed discrete solitons. Numerical modeling shows the existence of three different regimes: stable propagation of vector solitons at low power, instability for intermediate power levels leading to discrete shifting of the two discrete solitons, and an irregular temporal dynamic behavior of the two beams for high input power. © 2007 Optical Society of America.
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