Garanovich, IvanSukhorukov, AndreyKivshar, Yuri2009-06-042010-12-202009-06-042010-12-201094-4087http://hdl.handle.net/10440/405http://digitalcollections.anu.edu.au/handle/10440/405We 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 to the self-trapping and the formation of discrete diffraction-managed solitons.6 pages"OSA will grant the authors permission to deposit the publisher’s pdf from their Optics Express articles into the repository with the proper citation (reference number or journal /volume/page/year citation)." - from email received from Authorized Agent, The Optical Society, 27/05/10nonlinear optics, transverse effects inself-action effects2007-07-1710.1364/OE.15.0095472015-12-08