Quantum noise reduction in optical amplification

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)3239-3242
Journal / PublicationPhysical Review Letters
Volume70
Issue number21
Publication statusPublished - 1993
Externally publishedYes

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. © 1993 The American Physical Society.

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Quantum noise reduction in optical amplification. / Ou, Z. Y.; Pereira, S. F.; Kimble, H. J.
In: Physical Review Letters, Vol. 70, No. 21, 1993, p. 3239-3242.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review