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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Abstract
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.
| Item Type: | Article |
|---|---|
| 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. |
| Record Number: | CaltechAUTHORS:OUZprl93 |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:OUZprl93 |
| Alternative URL: | http://dx.doi.org/10.1103/PhysRevLett.70.3239 |
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 8832 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Archive Administrator |
| Deposited On: | 20 Sep 2007 |
| Last Modified: | 26 Dec 2012 09:42 |
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