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Experimental investigation of amplitude and phase quantum correlations in a type II OPO above threshold: from the non-degenerate to the degenerate operation
Julien Laurat, Thomas Coudreau, Laurent Longchambon +1
We describe a very stable type II optical parametric oscillator operated above threshold which provides 9.7 0.5 dB (89%) of quantum noise reduction on the intensity differenc…
Experimental Generation of Large Quadrature EPR Entanglement with a Self-Phase-Locked Type II OPO Below Threshold
Julien Laurat, Thomas Coudreau, Gaelle Keller +2
We study theoretically and experimentally the quantum properties of a type II frequency degenerate optical parametric oscillator below threshold with a quarter-wave plate inserted…
Experimental evidence of spontaneous symmetry breaking in intracavity type-II second harmonic generation with triple resonance
Laurent Longchambon, Nicolas Treps, Thomas Coudreau +2
We describe an experiment showing a spontaneous symmetry breaking phenomenon between the intensities of the ordinary and extraordinary components of the fundamental field in intrac…
Compact Source of EPR Entanglement and Squeezing at Very Low Noise Frequencies
Julien Laurat, Thomas Coudreau, Gaelle Keller +2
We report on the experimental demonstration of strong quadrature EPR entanglement and squeezing at very low noise sideband frequencies produced by a single type-II, self-phase-lock…