title: Quantum noise properties of parametric processes.
abstract: In this paper the quantum noise properties of phase-insensitive and phase-sensitive parametric processes are studied. Formulas for the field-quadrature and photon-number means and variances are derived, for processes that involve arbitrary numbers of modes. These quantities determine the signal-to-noise ratios associated with the direct and homo-dyne detection of optical signals. The consequences of the aforementioned formulas are described for frequency conversion, amplification, monitoring, and transmission through sequences of attenuators and amplifiers.
authors.forename: C
authors.initials: C
authors.lastname: McKinstrie
authors.forename: M
authors.initials: M
authors.lastname: Yu
authors.forename: M G
authors.initials: MG
authors.lastname: Raymer
authors.forename: S
authors.initials: S
authors.lastname: Radic