We show that, in vectorial intracavity second-harmonic generation, symmetry breaking occurs if the input amplitude exceeds a critical value. The resulting asymmetric stationary solutions are characterized by a second harmonic that is independent of the input amplitude. The solutions can destabilize through Hopf bifurcations, leading to self-oscillations with pronounced antiphase dynamics. We demonstrate that symmetry breaking can be exploited for flip-flop operation.
© 1998 Optical Society ofAmerica
U. Peschel, C. Etrich, and F. Lederer, "Symmetry breaking and self-oscillations in intracavity vectorial second-harmonic generation," Opt. Lett. 23, 500-502 (1998)