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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 15 — Aug. 1, 2011
  • pp: 2979–2981

Realization of low frequency and controllable bandwidth squeezing based on a four-wave-mixing amplifier in rubidium vapor

Cunjin Liu, Jietai Jing, Zhifan Zhou, Raphael C. Pooser, Florian Hudelist, Lu. Zhou, and Weiping Zhang  »View Author Affiliations


Optics Letters, Vol. 36, Issue 15, pp. 2979-2981 (2011)
http://dx.doi.org/10.1364/OL.36.002979


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Abstract

We experimentally demonstrate the creation of two correlated beams generated by a nondegenerate four-wave- mixing amplifier at λ = 795 nm in hot rubidium vapor. We achieve intensity difference squeezing at frequencies as low as 1.5 kHz which is so far the lowest frequency to observe squeezing in an atomic system. The squeezing spans from 5.5 to 16.5 MHz with a maximum squeezing of 5 dB at 1 MHz . We can control the squeezing bandwidth by changing the pump power. Both low frequency and controllable bandwidth squeezing show great potential in sensitivity detection and precise control of the atom optics measurement.

© 2011 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(270.6570) Quantum optics : Squeezed states
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: June 13, 2011
Revised Manuscript: July 8, 2011
Manuscript Accepted: July 9, 2011
Published: August 1, 2011

Citation
Cunjin Liu, Jietai Jing, Zhifan Zhou, Raphael C. Pooser, Florian Hudelist, Lu. Zhou, and Weiping Zhang, "Realization of low frequency and controllable bandwidth squeezing based on a four-wave-mixing amplifier in rubidium vapor," Opt. Lett. 36, 2979-2981 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-15-2979

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