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

Ivan L. Garanovich*, Andrey A. Sukhorukov, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    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 to the self-trapping and the formation of discrete diffraction-managed solitons.

    Original languageEnglish
    Pages (from-to)9547-9552
    Number of pages6
    JournalOptics Express
    Volume15
    Issue number15
    DOIs
    Publication statusPublished - 23 Jul 2007

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