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Optics Letters

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  • Vol. 13, Iss. 6 — Jun. 1, 1988
  • pp: 476–478

Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit

Min Xiao, Ling-An Wu, and H. J. Kimble  »View Author Affiliations


Optics Letters, Vol. 13, Issue 6, pp. 476-478 (1988)
http://dx.doi.org/10.1364/OL.13.000476


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Abstract

An improvement in precision beyond the limit set by the vacuum-state or zero-point fluctuations of the electromagnetic field is reported for the detection of amplitude modulation encoded on a weak signal beam. The improvement is achieved by employing the squeezed light from an optical parametric oscillator to reduce the level of fluctuations below the shot-noise limit. An increase in signal-to-noise ratio of 2.5 dB relative to the shot-noise limit is demonstrated.

© 1988 Optical Society of America

History
Original Manuscript: January 22, 1988
Manuscript Accepted: March 21, 1988
Published: June 1, 1988

Citation
Min Xiao, Ling-An Wu, and H. J. Kimble, "Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit," Opt. Lett. 13, 476-478 (1988)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-13-6-476


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References

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  7. We denote Hilbert-space operators with a caret (ˆ).
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