Two-color discrete localized modes and resonant scattering in arrays of nonlinear quadratic optical waveguides.
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.
Molina
Mario I
MI
Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
Vicencio
Rodrigo A
RA
Kivshar
Yuri S
YS