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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 13 — Jun. 23, 2008
  • pp: 9351–9356

Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked OPO

G. Keller, V. D’Auria, N. Treps, T. Coudreau, J. Laurat, and C. Fabre  »View Author Affiliations

Optics Express, Vol. 16, Issue 13, pp. 9351-9356 (2008)

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We report the first experimental observation of bright EPR beams produced by a type-II optical parametric oscillator operating above threshold at frequency degeneracy. The degenerate operation is obtained by introducing a birefringent plate inside the cavity resulting in phase locking. After filtering the pump noise, which plays a critical role, continuousvariable EPR correlations between the orthogonally polarized signal and idler beams are demonstrated.

© 2008 Optical Society of America

OCIS Codes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(270.0270) Quantum optics : Quantum optics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

Original Manuscript: April 2, 2008
Revised Manuscript: May 20, 2008
Manuscript Accepted: May 29, 2008
Published: June 10, 2008

G. Keller, V. D'Auria, N. Treps, T. Coudreau, J. Laurat, and C. Fabre, "Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked OPO," Opt. Express 16, 9351-9356 (2008)

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Fig. 1. Fig. 2. Fig. 3.

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