Quantum mechanics of phase-sensitive amplfication in a fiber
01 January 2004
In a recent report (ITD-04-45711L) four schemes were described, which produce phase-sensitive amplfication infibers. In this report the basic quantum mechanics of these schemes are discussed. For each scheme, formulas are derived for the field- quadrature and photon-number variances, which facilitate the (signal and idler) noise figure analyses for direct and homodyne detection.