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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 15 — Jul. 23, 2007
  • pp: 9547–9552

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

Ivan L. Garanovich, Andrey A. Sukhorukov, and Yuri S. Kivshar  »View Author Affiliations

Optics Express, Vol. 15, Issue 15, pp. 9547-9552 (2007)

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We study nonlinear propagation of light in diffraction-managed 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.

© 2007 Optical Society of America

OCIS Codes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.5940) Nonlinear optics : Self-action effects

ToC Category:
Nonlinear Optics

Original Manuscript: May 1, 2007
Revised Manuscript: July 12, 2007
Manuscript Accepted: July 15, 2007
Published: July 17, 2007

Ivan L. Garanovich, Andrey A. Sukhorukov, and Yuri S. Kivshar, "Nonlinear diffusion and beam self-trapping in diffraction-managed waveguide arrays," Opt. Express 15, 9547-9552 (2007)

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