Marhic Michel E
College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK.
Opt Express. 2012 Dec 17;20(27):28752-7. doi: 10.1364/OE.20.028752.
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.
