Open AccessTheory of photon statistics and squeezing in quantum interference of a sub-threshold parametric oscillator
Author(s) -
Roger Andrews,
E. R. Pike,
Sarben Sarkar
Publication year - 2003
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.000007
Subject(s) - optical parametric oscillator , physics , spontaneous parametric down conversion , optics , local oscillator , homodyne detection , quantum optics , quantum mechanics , parametric statistics , interference (communication) , coherent states , photon , quantum , phase noise , quantum entanglement , laser , statistics , mathematics , telecommunications , channel (broadcasting) , computer science
A multimode theory describing quantum interference of a subthreshold optical parametric oscillator (OPO) with a coherent local oscillator (LO) in a homodyne detection scheme is presented. Analytic expressions for the count rates in terms of the correlation time and relative phase difference between the LO and OPO have been derived. The spectrum of squeezing is also derived and the threshold for squeezing obtained in terms of the crystal nonlinearity and LO and OPO beam intensities.