Ou, Z. Y. and Pereira, S. F. and Kimble, H. J. (1993) Quantum noise reduction in optical amplification. Physical Review Letters, 70 (21). pp. 3239-3242. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:OUZprl93
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Quantum fluctuations in optical amplification are investigated with a nondegenerate optical parametric amplifier whose internal idler mode is coupled to a squeezed vacuum. Reductions of the inherent quantum noise of the amplifier are observed with a minimum noise level 0.7 dB below the usual noise level of the amplifier with its internal idler mode in a vacuum state. With a small coherent field as the signal input, the amplified output exhibits an improvement in signal-to-noise ratio of 0.5 dB for the case of a squeezed-vacuum as compared to a vacuum state for the amplifier’s internal mode.
|Additional Information:||©1993 The American Physical Society Received 9 December 1992. This work was supported by the Office of Naval Research and the National Science Foundation. We gratefully acknowledge the contributions of Professor J. Yarrison-Rice made during a summer research visit.|
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|Deposited On:||20 Sep 2007|
|Last Modified:||26 Dec 2012 09:42|
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