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arXiv · 0804.0508

Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked optical parametric oscillator

Gaelle Keller·Virginia D'Auria·Nicolas Treps·Thomas Coudreau·Julien Laurat·Claude Fabre
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Abstract

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, continuous-variable EPR correlations between the orthogonally polarized signal and idler beams are demonstrated.

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Gaelle Keller, Virginia D'Auria, Nicolas Treps, Thomas Coudreau, Julien Laurat, Claude Fabre. 2008-06-12. Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked optical parametric oscillator. https://doi.org/10.1364/oe.16.009351

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