Physics – Quantum Physics
Scientific paper
2007-09-04
Physics
Quantum Physics
15 pages
Scientific paper
10.1209/0295-5075/82/24003
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.
Jia* Xiaojun
Peng Kunchi
Shang Yana
Wang Dong
Wang Wenzhe
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