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Optics Letters

Optics Letters


  • 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)

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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

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

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)

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