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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 3 — Feb. 1, 2010
  • pp: 312–314

High-speed quantum random number generation by measuring phase noise of a single-mode laser

Bing Qi, Yue-Meng Chi, Hoi-Kwong Lo, and Li Qian  »View Author Affiliations


Optics Letters, Vol. 35, Issue 3, pp. 312-314 (2010)
http://dx.doi.org/10.1364/OL.35.000312


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Abstract

We present a high-speed random number generation scheme based on measuring the quantum phase noise of a single-mode laser operating at a low intensity level near the lasing threshold. A delayed self-heterodyning system has been developed to measure the random phase fluctuation. By actively stabilizing the phase of the interferometer, a random number generation rate of 500 Mbit/s has been demonstrated and the generated random numbers have passed all the DIEHARD tests.

© 2010 Optical Society of America

OCIS Codes
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(270.5565) Quantum optics : Quantum communications

ToC Category:
Quantum Optics

History
Original Manuscript: October 22, 2009
Manuscript Accepted: December 7, 2009
Published: January 25, 2010

Citation
Bing Qi, Yue-Meng Chi, Hoi-Kwong Lo, and Li Qian, "High-speed quantum random number generation by measuring phase noise of a single-mode laser," Opt. Lett. 35, 312-314 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-3-312

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