Two-color discrete localized modes and resonant scattering in arrays of nonlinear quadratic optical waveguides

M.I. Molina, R.A. Vicencio and Kivshar Y.S.
PHYSICAL REVIEW E 72, 3 (2005)

ABSTRACT

We analyze the properties and stability of two-color discrete localized modes in arrays of channel waveguides where tunable quadratic nonlinearity is introduced as a nonlinear defect by periodic poling of a single waveguide in the array. We show that, depending on the value of the phase mismatch and the input power, such two-color defect modes can be realized in three different localized states. We also study resonant light scattering in the arrays with the defect waveguide.

DOI: http://dx.doi.org/10.1103/PhysRevE.72.036622



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