Wu, Ling-An and Xiao, Min and Kimble, H. J. (1987) Squeezed states of light from an optical parametric oscillator. Journal of the Optical Society of America B, 4 (10). pp. 1465-1475. ISSN 0740-3224 http://resolver.caltech.edu/CaltechAUTHORS:WULjosab87
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Squeezed states of the electromagnetic field are generated by degenerate parametric downconversion in a subthreshold optical parametric oscillator. Reductions in photocurrent noise greater than 60% (-4 dB) below the limit set by the vacuum fluctuations of the field are observed in a balanced homodyne detector. A quantitative comparison with theory suggests that the observed noise reductions result from a field that in the absence of avoidable linear attenuation would be squeezed more than tenfold. A degree of squeezing of approximately fivefold is inferred for the actual field emitted through one mirror of the optical parametric oscillator. An explicit demonstration of the Heisenberg uncertainty principle for the electromagnetic field is made from the measurements, which show that the field state produced by the downconversion process is a state of minimum uncertainty.
|Additional Information:||© Copyright 2006 Optical Society of America Received May 12, 1987; accepted July 7, 1987 This research was supported by the Venture Research Unit of British Petroleum, International, and by the U.S. Office of Naval Research. We gratefully acknowledge the contributions of J. L. Hall, Kun-Chi Peng, and Huifa Wu to this research program. The MgO:LiNbO3 crystal was generously provided by Crystal Technology and the Ba2NaNb5O15 crystal by the Shanghai Institute of Ceramics. The dual-band coatings were skillfully fabricated by Virgo Optics.|
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|Deposited On:||05 Sep 2006|
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