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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • 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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