2005/09/30 by Mario I. Molina, M. I. Molina, Rodrigo A. Vicencio +3
Physics and Astronomy · #Advanced Fiber Laser Technologies #Nonlinear Photonic Systems #Nonlinear Waves and Solitons #nlin.PS
paper · pdf · doi:10.1103/physreve.72.036622
published as Phys. Rev. E 72, 036622 (2005) · 10 pages, 3 figures, published in PRE
openalex publication_date 2005/09/30 · arxiv created 2006/02/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.