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Experimental demonstration of quantum entanglement between frequency-nondegenerate optical twin beams

Authors :
Su, Xiaolong
Tan, Aihong
Jia, Xiaojun
Pan, Qing
Xie, Changde
Peng, Kunchi
Source :
Optics Letters; April 2006, Vol. 31 Issue: 8 p1133-1135, 3p
Publication Year :
2006

Abstract

The quantum entanglement of amplitude and phase quadratures between two intense optical beams with a total intensity of 22mW and a frequency difference of 1nm, which are produced from an optical parametric oscillator operating above threshold, is experimentally demonstrated with two sets of unbalanced Mach-Zehnder interferometers. The measured quantum correlations of intensity and phase are in reasonable agreement with the results calculated based on a semiclassical analysis of the noise characteristics given by Fabre [J. Phys. (France) 50, 1209 (1989)].

Details

Language :
English
ISSN :
01469592 and 15394794
Volume :
31
Issue :
8
Database :
Supplemental Index
Journal :
Optics Letters
Publication Type :
Periodical
Accession number :
ejs10381011