Energy Localization Through Bragg Gratings in Quadratic Media for Second Harmonic Generation |
| C. Conti, G. Assanto Department of Electronic Engineering, Terza University of Rome, Via della Vasca Navale 84, 00146 Rome, Italy and S. Trillo Fondazione Ugo Bordoni, Via Baldassarre Castiglione 59, 00142 Rome, Italy |
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| In a waveguide for second-harmonic generation, a linear corrugation able to couple counterpropagating waves at the second-harmonic and/or at the fundamental frequency can induce localization effects through the formation of gap-simultons, i.e. bi-color gap-solitons. These can move slowly or be stationary, collide and merge. All-optical memories are envisaged. |
| DOI: 10.12693/APhysPolA.95.719 PACS numbers: 42.65.-k, 42.65.Pc, 42.65.Ky |