1. Bistability, limiting, and self-pulsing in backward second-harmonic generation: a time-domain approach
- Author
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C. De Angelis, Michele Lauritano, Alberto Parini, Stefano Trillo, Matteo Conforti, Andrea Locatelli, and Gaetano Bellanca
- Subjects
Quasi-phase-matching ,Physics ,Second-harmonic generation ,Bistability ,generazione di impulsi ,business.industry ,instabilità ,Nonlinear optics ,self-pulsing ,Coupled mode theory ,Atomic and Molecular Physics, and Optics ,Optical bistability ,sistemi nonlineari ,Nonlinear system ,Optics ,gratings ,instabilities ,Generazione di Seconda Armonica ,Time domain ,business - 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.
- Published
- 2006