We investigate backward second-harmonic generation in short-period quasi-phase-matched gratings by means of a finite-difference time-domain method adapted to modelling dispersive nonlinear propagation in the one-dimensional quasi-scalar approximation. Particular emphasis is placed on instability phenomena, encompassing bistability, limiting (frustrated bistability), and self-pulsing. We check the behaviour of the frequency conversion process against the prediction of the coupled-mode theory.

Bistability, limiting, and self-pulsing in backward second-harmonic generation: a time-domain approach

LAURITANO, Michele;PARINI, Alberto;BELLANCA, Gaetano;TRILLO, Stefano;
2006

Abstract

We investigate backward second-harmonic generation in short-period quasi-phase-matched gratings by means of a finite-difference time-domain method adapted to modelling dispersive nonlinear propagation in the one-dimensional quasi-scalar approximation. Particular emphasis is placed on instability phenomena, encompassing bistability, limiting (frustrated bistability), and self-pulsing. We check the behaviour of the frequency conversion process against the prediction of the coupled-mode theory.
Lauritano, Michele; Parini, Alberto; Bellanca, Gaetano; Trillo, Stefano; Conforti, M; Locatelli, A; DE ANGELIS, C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1196717
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