title: Detailed characterization of afiber-optic parametric amplifier in phase-sensitive and phase-insensitive operation.
abstract: We experimentally demonstrate a single-pumped, non-degenerate phase-sensitive parametric amplifier with a precise control of phase and amplitude of the in-going waves and investigate in detail its gain, attenuation and saturation properties in comparison with operation in phase insensitive amplifier (PIA) mode. We experimentally observe the variation of the gain and attenuation as a function of the relative phase, pump power and the signal-idler power ratio. The phase sensitive gain spectrum is studied over a 24 nm symmetrical bandwidth and we achieve a maximum phase sensitive amplification (PSA) gain of 33 dB. A departure from the theoretical maximum attenuation as the gain increases is observed and explained.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK. jkk@orc.soton.ac.uk
authors.forename: Joseph
authors.initials: J
authors.lastname: Kakande
authors.forename: Carl
authors.initials: C
authors.lastname: Lundström
authors.forename: Peter A
authors.initials: PA
authors.lastname: Andrekson
authors.forename: Zhi
authors.initials: Z
authors.lastname: Tong
authors.forename: Magnus
authors.initials: M
authors.lastname: Karlsson
authors.forename: Periklis
authors.initials: P
authors.lastname: Petropoulos
authors.forename: Francesca
authors.initials: F
authors.lastname: Parmigiani
authors.forename: David J
authors.initials: DJ
authors.lastname: Richardson