title: Noise figure of hybrid optical parametric amplifiers.
abstract: Following a fiber optical parametric amplifier, used as a wavelength converter or in the phase-sensitive mode, by a phase-insensitive amplifier (PIA) can significantly reduce four-wave mixing between signals in broadband systems. We derive the quantum mechanical noise figures (NF) for these two hybrid configurations, and show that adding the PIA only leads to a moderate increase in NF.
authors.affiliation: College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK. m.e.marhic@swan.ac.uk
authors.forename: Michel E
authors.initials: ME
authors.lastname: Marhic
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D059629:Signal-To-Noise Ratio; D013685:Telecommunications / Q000295:instrumentation*