title: Low-intensity optical bistability in an active Fabry-Perot mirror induced by input-phase-insensitive parametric downconversion.
abstract: 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.
authors.affiliation: Dipartimento di Energetica, Università La Sapienza e Instituto Nazionale per la Fisica della Materia, Rome, Italy.
authors.forename: Alessio
authors.initials: A
authors.lastname: Bosco
authors.forename: Eugenio
authors.initials: E
authors.lastname: Fazio
authors.forename: Mario
authors.initials: M
authors.lastname: Bertolotti
authors.forename: Crina
authors.initials: C
authors.lastname: Cojocaru
authors.forename: Jordi
authors.initials: J
authors.lastname: Martorell