title: Noise beating in hybrid phase-sensitive amplifier systems.
abstract: We investigate the effect of noise loading in a hybrid phase-sensitive amplifier system, analyzing the effect of noise beating between the signal and idler waves coupled in a parametric amplifier. Through analyzing input and output optical signal to noise ratios, we find that system performance of a phase-sensitive amplifier is 3 to 6 dB improved over a phase-insensitive amplifier, depending on the ratio of loaded noise power to that of vacuum fluctuations.
authors.forename: B
authors.initials: B
authors.lastname: Corcoran
authors.forename: R
authors.initials: R
authors.lastname: Malik
authors.forename: S L I
authors.initials: SL
authors.lastname: Olsson
authors.forename: C
authors.initials: C
authors.lastname: Lundström
authors.forename: M
authors.initials: M
authors.lastname: Karlsson
authors.forename: P A
authors.initials: PA
authors.lastname: Andrekson