Experimental investigation to influence of pump phase fluctuation on phase-correlation of output optical fields from a non-degenerate parametric oscillator
arXiv:0709.0429 · doi:10.1209/0295-5075/82/24003
Abstract
The influence of the phase fluctuation of the pump laser on the phase-correlation between the signal and idler modes of the output fields from as non-degenerate optical parametric oscillator operating above oscillation threshold was experimentally investigated. The noise spectra of the intensity-difference and the phase-sum of the entangled optical beams were measured with a pair of unbalanced fiber Match-Zehnder interferometers specifically designed. The experimental results proved the previously theoretical prediction and are in reasonable agreement with the calculation based on semiclassical theory involving the phase fluctuation of pump laser.
arXiv comment15 pages
References in corpus (9)
- Quantum information with continuous variables
- Generation of Bright Two-Color Continuous Variable Entanglement
- Conditional preparation of a quantum state in the continuous variable regime: generation of a sub-Poissonian state from twin beams
- Experimental continuous-variable entanglement from a phase-difference-locked optical parametric oscillator
- Experimental Demonstration of Quantum Entanglement Between Frequency-Nondegenerate Optical Twin Beams
- Experimental investigation of amplitude and phase quantum correlations in a type II OPO above threshold: from the non-degenerate to the degenerate operation
- Entanglement in the above-threshold optical parametric oscillator
- Sub shot noise phase quadrature measurement of intense light beams
- Dependence of quantum correlations of twin beams on pump finesse of optical parametric oscillator