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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 15 — Aug. 1, 2012
  • pp: 3141–3143

Compact diode-laser-pumped quantum light source based on four-wave mixing in hot rubidium vapor

Zhongzhong Qin, Jietai Jing, Jun Zhou, Cunjin Liu, Raphael C. Pooser, Zhifan Zhou, and Weiping Zhang  »View Author Affiliations

Optics Letters, Vol. 37, Issue 15, pp. 3141-3143 (2012)

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Using a nondegenerate four-wave mixing process in hot rubidium vapor, we demonstrate a compact diode-laser-pumped system for the generation of intensity-difference squeezing down to 8 kHz with a maximum squeezing of 7dB. To the best of our knowledge, this is the first demonstration of kilohertz-level intensity-difference squeezing using a semiconductor laser as the pump source. This scheme is of interest for experiments involving atomic ensembles, quantum communications, and precision measurements. The diode-laser-pumped system would extend the range of possible applications for squeezing due to its low cost, ease of operation, and ease of integration.

© 2012 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

Original Manuscript: April 4, 2012
Revised Manuscript: June 14, 2012
Manuscript Accepted: June 14, 2012
Published: July 23, 2012

Zhongzhong Qin, Jietai Jing, Jun Zhou, Cunjin Liu, Raphael C. Pooser, Zhifan Zhou, and Weiping Zhang, "Compact diode-laser-pumped quantum light source based on four-wave mixing in hot rubidium vapor," Opt. Lett. 37, 3141-3143 (2012)

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