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