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Competing nonlinearities in quadratic nonlinear waveguide arrays

Setzpfandt, Frank; Neshev, Dragomir N; Schiek, Roland; Lederer, Falk; Tünnermann, Andreas; Pertsch, Thomas

Description

We demonstrate experimentally the existence of competing focusing and defocusing nonlinearities in a double-resonant system with quadratic nonlinear response. We use an array of periodically poled coupled optical waveguides and observe inhibition of the nonlinear beam self-action independent on power. This inhibition is demonstrated in both regimes of normal and anomalous beam diffraction.

CollectionsANU Research Publications
Date published: 2009-11-15
Type: Journal article
URI: http://hdl.handle.net/1885/100991
Source: Optics letters
DOI: 10.1364/OL.34.003589

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