A Fabry-Perot resonator filled with second-order nonlinear optical material is investigated. Attention is devoted to making the resonator act as a nonlinear mirror for ultralow-intensity light signals that can be switched by a control beam at the second-harmonic frequency. The interaction process is an input-phase-independent parametric downconversion. The theoretical problem is solved through implementation of a dummy variable method optimized for a parametric process. Efficient amplification and bistability of low-intensity signals have been found.
© 2002 Optical Society of America
Alessio Bosco, Eugenio Fazio, Mario Bertolotti, Crina Cojocaru, and Jordi Martorell, "Low-Intensity Optical Bistability in an Active Fabry-Perot Mirror Induced by Input-Phase-Insensitive Parametric Downconversion," Appl. Opt. 41, 2935-2943 (2002)