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Nonlinear diffusion and beam self-trapping in diffraction-managed waveguide arrays

Garanovich, Ivan; Sukhorukov, Andrey; Kivshar, Yuri


We study nonlinear propagation of light in diffractionmanaged photonic lattices created by periodically-curved arrays of optical waveguides. We identify different regimes of the nonlinear propagation of light in such structures depending on the input power. We start from the regime of self-collimation at low powers and demonstrate that, as the beam power increases, nonlinearity destroys the beam self-imaging and leads to nonlinear diffusion. At higher powers, we observe a sharp transition...[Show more]

CollectionsANU Research Publications
Date published: 2007-07-17
Type: Journal article
Source: Optics Express 15.15 (2007): 9547-9552
DOI: 10.1364/OE.15.009547


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