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تسجيل مستخدم جديدExperimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked optical parametric oscillator
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Gaelle Keller
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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, continuous-variable EPR correlations between the orthogonally polarized signal and idler beams are demonstrated.
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