Publication
Physical Review Letters
Paper

Four-mode squeezing

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Abstract

The four-wave-mixing interactions produced by pumping at two well-separated frequencies can couple four different radiation modes to generate a new kind of squeezed state of light. A dual-frequency homodyne detection scheme is described and is used to observe this type of nonclassical correlation. Initial experimental results in an optical fiber show a noise level 20% below the vacuum noise level for the output of the dual-frequency detector, even though the noise at each individual detector remains above the vacuum level. © 1987 The American Physical Society.

Date

26 Jan 1987

Publication

Physical Review Letters

Authors

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