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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 21 — Nov. 1, 2008
  • pp: 2461–2463

Spectral coherent-state quantum cryptography

Gabriella Cincotti, Leo Spiekman, Naoya Wada, and Ken-ichi Kitayama  »View Author Affiliations


Optics Letters, Vol. 33, Issue 21, pp. 2461-2463 (2008)
http://dx.doi.org/10.1364/OL.33.002461


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Abstract

A novel implementation of quantum-noise optical cryptography is proposed, which is based on a simplified architecture that allows long-haul, high-speed transmission in a fiber optical network. By using a single multiport encoder/decoder and 16 phase shifters, this new approach can provide the same confidentiality as other implementations of Yuen’s encryption protocol, which use a larger number of phase or polarization coherent states. Data confidentiality and error probability for authorized and unauthorized receivers are carefully analyzed.

© 2008 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(270.2500) Quantum optics : Fluctuations, relaxations, and noise

ToC Category:
Quantum Optics

History
Original Manuscript: July 1, 2008
Manuscript Accepted: September 3, 2008
Published: October 22, 2008

Citation
Gabriella Cincotti, Leo Spiekman, Naoya Wada, and Ken-ichi Kitayama, "Spectral coherent-state quantum cryptography," Opt. Lett. 33, 2461-2463 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-21-2461


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References

  1. D. E. Leaird, C.-B. Huang, Z. Jiang, S.-G. Park, and A. M. Weiner, in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2008), paper OTuP2.
  2. H. Yuen, arXiv.org e-Print archive, 30 July 2004, arXiv:quant-ph/0311061v6.
  3. C. Liang, G. S. Kanter, E. Corndorf, and P. Kumar, IEEE Photon. Technol. Lett. 17, 1573 (2005). [CrossRef]
  4. G. Cincotti, N. Wada, and K. Kitayama, IEEE Photon. Technol. Lett. 20, 168 (2008). [CrossRef]
  5. H. Yuen, P. Kumar, E. Corndorf, and R. Nair, Phys. Lett. A 346, 1 (2005). [CrossRef]
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