We study the effects of the induced third-order nonlinearity on backward second-harmonic generation in Periodically Poled Lithium Niobate (PPLN). We show that self-phase and cross-phase modulation terms induced by a proper engineering of the domain length can compete with intrinsic quadratic nonlinearity enriching the dynamics of the system. In particular it allows for self oscillation even with vanishing second-harmonic input.
Self pulsing due to backward second-harmonic generation in engineered PPLN: the role of the induced cubic nonlinearity
PARINI, Alberto;LAURITANO, Michele;BELLANCA, Gaetano;TRILLO, Stefano
2007
Abstract
We study the effects of the induced third-order nonlinearity on backward second-harmonic generation in Periodically Poled Lithium Niobate (PPLN). We show that self-phase and cross-phase modulation terms induced by a proper engineering of the domain length can compete with intrinsic quadratic nonlinearity enriching the dynamics of the system. In particular it allows for self oscillation even with vanishing second-harmonic input.File in questo prodotto:
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