title: Phase and amplitude characteristics of a phase-sensitive amplifier operating in gain saturation.
abstract: We investigate a non-degenerate phase-sensitive amplifier (PSA) operating in gain saturation experimentally and numerically using the three-wave model. The phase-dependent gain and phase-to-phase transfer functions are obtained for different levels of saturation with good agreement between experimental and numerical data when higher-order FWM is small. Moreover, we identify an operating point where the PSA is found to be able to significantly reduce both phase- and amplitude noise simultaneously.
authors.affiliation: Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, S-412 96, Goteborg, Sweden. carl.lundstrom@chalmers.se
authors.forename: Carl
authors.initials: C
authors.lastname: Lundström
authors.forename: Bill
authors.initials: B
authors.lastname: Corcoran
authors.forename: Magnus
authors.initials: M
authors.lastname: Karlsson
authors.forename: Peter A
authors.initials: PA
authors.lastname: Andrekson