Energy Localization Through Bragg Gratings in Quadratic Media for Second Harmonic Generation

, , and . Acta Physica Polonica A 95 (): 719 (1999)


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.

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