Experimental investigation of amplitude and phase quantum correlations in a type II OPO above threshold: from the non-degenerate to the degenerate operation

Abstract

We describe a very stable type II optical parametric oscillator operated above threshold which provides 9.7 $\pm$ 0.5 dB (89%) of quantum noise reduction on the intensity difference of the signal and idler modes. We also report the first experimental study by homodyne detection of the generated bright two-mode state in the case of frequency degenerate operation obtained by introducing a birefringent plate inside the optical cavity.

References in corpus (6)

• Inseparability criterion for continuous variable systems
• Polarization squeezing and continuous-variable polarization entanglement
• Polarization Squeezing of Continuous Variable Stokes Parameters
• Polarization squeezing with cold atoms
• Compact Source of EPR Entanglement and Squeezing at Very Low Noise Frequencies
• Non-linear and quantum optics of a type II OPO containing a birefringent element Part 2 : bright entangled beams generation

Cited by in corpus (38)

• Strong relative intensity squeezing by 4-wave mixing in Rb vapor
• Generation of Bright Two-Color Continuous Variable Entanglement
• Strong low-frequency quantum correlations from a four-wave mixing amplifier
• Entanglement of two-mode Gaussian states: characterization and experimental production and manipulation
• Quantum Light from a Whispering Gallery Mode Disk Resonator
• Direct Production of Tripartite Pump-Signal-Idler Entanglement in the Above-Threshold Optical Parametric Oscillator
• Theory of Two-Photon Interactions with Broadband Down-Converted Light and Entangled Photons
• Double-lambda microscopic model for entangled light generation by four-wave-mixing
• Experimental continuous-variable entanglement from a phase-difference-locked optical parametric oscillator
• Experimental Demonstration of Quantum Entanglement Between Frequency-Nondegenerate Optical Twin Beams
• Quantum correlations by four-wave mixing in an atomic vapor in a non-amplifying regime: a quantum beam splitter for photons
• Polarization squeezing of light by single passage through an atomic vapor
• Entanglement in the above-threshold optical parametric oscillator
• Observation of entanglement between two light beams spanning an octave in optical frequency
• Extra phase noise from thermal fluctuations in nonlinear optical crystals
• Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked optical parametric oscillator
• Dynamics of transient cat-states in degenerate parametric oscillation with and without nonlinear Kerr interactions
• Broadband amplitude squeezing in a periodically poled KTiOPO_4 waveguide
• Strong quantum correlations in four wave mixing in ${}^{85}$Rb vapor
• Degenerate parametric oscillation in quantum membrane optomechanics
• Experimental observation of three-color optical quantum correlations
• Generating quantum correlated twin beams by four-wave mixing in hot cesium vapor
• Compact sub-kilohertz low-frequency quantum light source based on four-wave mixing in cesium vapor
• Exponentially enhanced quantum communication rate by multiplexing continuous-variable teleportation
• Non-critical squeezing in 2-transverse-mode optical parametric oscillators
• Quadrature entanglement and photon-number correlations accompanied by phase-locking
• Phase-locking at low-level of quanta
• Experimental investigation to influence of pump phase fluctuation on phase-correlation of output optical fields from a non-degenerate parametric oscillator
• Triply-resonant Optical Parametric Oscillator by Four-wave Mixing with Rubidium Vapor inside an Optical Cavity
• Dependence of quantum correlations of twin beams on pump finesse of optical parametric oscillator
• Toward a compact fibered squeezing parametric source
• Critical fluctuations in an optical parametric oscillator: when light behaves like magnetism
• Five-Partite Entanglement Generation in A High-Q Microresonator
• Noncritical quadrature squeezing through spontaneous polarization symmetry breaking
• Impact of anisotropy on the noncritical squeezing properties of two-transverse-mode optical parametric oscillators
• Generation of two-color polarization-entangled optical beams with a self-phase-locked two-crystal Optical Parametric Oscillator
• Universal quantum frequency comb measurements by spectral mode-matching
• Hidden quantum correlations in cavity-based quantum optics