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Topical Meeting on Optical Bistability (OB)

Squeezing in Bistable Optical Systems

Serge Reynaud, E. Giacobino

Published Jan 1, 1988• 0 citations
Publisher

Abstract

It is known that optical bistable systems are capable of generating squeezed states of light ([1] [2]). Perfect squeezing is achievable for the outgoing field in the following configuration: operation near the critical point of a single-ended cavity containing a (noise-free) dispersive non-linear medium ([3]).
DOI
10.1364/obi.1988.fc.2

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It is known that optical bistable systems are capable of generating squeezed states of light. Perfect squeezing can even be achieved near the bistability threshold. We show that it is possible to obtain the quantum fluctuations of the outgoing field by a "classical" treatment provided that the vacuum fluctuations are properly accounted for. This approach allows us to give a simple physical interpretation to the fluctuation spectra computed for optimum squeezing and for intensity squeezing.
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The squeezing spectrum for a cavity field mode interacting with an ensemble of three-level ``\ensuremath{\Lambda}-configuration'' atoms by an effective two-photon transition is calculated. The advantage of the three-level \ensuremath{\Lambda} system as a squeezing medium, that is, optical nonlinearity without atomic saturation, has recently been pointed out by Reid, Walls, and Dalton. We predict perfect squeezing at the turning points for dispersive optical bistability and good squeezing for a range of other cases. Three-level ladder atoms interacting by an effective two-photon transition are also shown to give perfect squeezing in the dispersive limit.
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