The European Physical Journal D

, 56:123

Quantum theory of synchronously pumped type I optical parametric oscillators: characterization of the squeezed supermodes

  • G. Patera
  • N. Treps
  • C. Fabre
  • G. J. de Valcárcel
Highlight Paper

DOI: 10.1140/epjd/e2009-00299-9

Cite this article as:
Patera, G., Treps, N., Fabre, C. et al. Eur. Phys. J. D (2010) 56: 123. doi:10.1140/epjd/e2009-00299-9

Abstract.

Quantum models for synchronously pumped type I optical parametric oscillators (SPOPO) are presented. The study of the dynamics of SPOPOs, which typically involves millions of coupled signal longitudinal modes, is significantly simplified when one considers the “supermodes", which are independent linear superpositions of all the signal modes diagonalizing the parametric interaction. In terms of these supermodes the SPOPO dynamics becomes that of about a hundred of independent, single mode degenerate OPOs, each of them being a squeezer. One derives a general expression for the squeezing spectrum measured in a balanced homodyne detection experiment, valid for any temporal shape of the local oscillator. Realistic cases are then studied using both analytical and numerical methods: the oscillation threshold is derived, and the spectral and temporal shapes of the squeezed supermodes are characterized.

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • G. Patera
    • 1
  • N. Treps
    • 1
  • C. Fabre
    • 1
  • G. J. de Valcárcel
    • 2
  1. 1.Laboratoire Kastler Brossel, Université Pierre et Marie Curie – Paris 6, ENS, CNRSParis Cedex 05France
  2. 2.Departament d’ÒpticaUniversitat de ValènciaBurjassotSpain