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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 12 — Jun. 15, 2005
  • pp: 1533–1535

Quantum key distribution over a fiber-optic channel by means of pulse position modulation

Moshe Nazarathy  »View Author Affiliations


Optics Letters, Vol. 30, Issue 12, pp. 1533-1535 (2005)
http://dx.doi.org/10.1364/OL.30.001533


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Abstract

New methods are proposed for extending the range of fiber-optic one-way quantum key distribution (QKD), inspired by classical optical communication formats. A new time-domain technique based on pulse position modulation (PPM) is combined with differential phase-shift keying to optically implement a six-state protocol. Finally, some recently proposed PPM schemes are critically reviewed and applied to synthesize a new QKD asymmetric optical realization, applicable to local or metropolitan area networks.

© 2005 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(270.5570) Quantum optics : Quantum detectors

Citation
Moshe Nazarathy, "Quantum key distribution over a fiber-optic channel by means of pulse position modulation," Opt. Lett. 30, 1533-1535 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-12-1533

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