Bi-colour spatial solitons in linearly uncoupled planar waveguides

We report on the observation of spatial optical simultons in a novel geometry consisting of two partially overlapped, linearly uncoupled planar waveguides in lithium niobate obtained by reverse proton exchange. Two orthogonally polarized modes are coupled through an off-diagonal tensor element of th...

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Published inJournal of optics. B, Quantum and semiclassical optics Vol. 6; no. 5; pp. S217 - S222
Main Authors Colace, Lorenzo, Leo, Giuseppe, Amoroso, Antonio, Falco, Andrea Di, Cino, Alfonso C, Assanto, Gaetano
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.05.2004
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Summary:We report on the observation of spatial optical simultons in a novel geometry consisting of two partially overlapped, linearly uncoupled planar waveguides in lithium niobate obtained by reverse proton exchange. Two orthogonally polarized modes are coupled through an off-diagonal tensor element of the quadratic nonlinearity, giving rise to second harmonic generation and mutual trapping via cascading. This phenomenon demonstrates a balance between diffraction and self-focusing for two orthogonal modes of different waveguides, and occurs at room temperature in longitudinally uniform waveguides.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1464-4266
1741-3575
DOI:10.1088/1464-4266/6/5/008