title: Noncritical quadrature squeezing through spontaneous polarization symmetry breaking.
abstract: We discuss the possibility of generating noncritical quadrature squeezing by spontaneous polarization symmetry breaking. We first consider Type II frequency-degenerate optical parametric oscillators but discard them for a number of reasons. Then we propose a four-wave-mixing cavity, in which the polarization of the output mode is always linear but has an arbitrary orientation. We show that in such a cavity, complete noise suppression in a quadrature of the output field occurs, irrespective of the parameter values.
authors.affiliation: Departament d'Optica, Universitat de València, Dr. Moliner 50, 46100 Burjassot, Spain.
authors.forename: Ferran V
authors.initials: FV
authors.lastname: Garcia-Ferrer
authors.forename: Carlos
authors.initials: C
authors.lastname: Navarrete-Benlloch
authors.forename: Germán J
authors.initials: GJ
authors.lastname: de Valcárcel
authors.forename: Eugenio
authors.initials: E
authors.lastname: Roldán