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Proceedings Paper

Gigahertz-clocked quantum key distribution in passive optical networks
Author(s): Veronica Fernandez; Robert J. Collins; Karen J. Gordon; Paul D. Townsend; Gerald S. Buller
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Paper Abstract

In this paper we demonstrate the application of multi-user quantum key distribution (QKD) to typical broadband fibrebased passive optical access links to metropolitan area networks. We propose a technique to utilize the currently unused 850nm waveband in standard telecommunications fiber for QKD in two network architectures. Net bit rates of up to 100's of kilobits-1 were achieved for each receiver, depending on the network topology. The transmission distances between sender and receivers were compatible with the typical span of optical access links ( ≤ 10km).

Paper Details

Date Published: 10 September 2007
PDF: 8 pages
Proc. SPIE 6780, Quantum Communications Realized, 678004 (10 September 2007); doi: 10.1117/12.732476
Show Author Affiliations
Veronica Fernandez, Heriot-Watt Univ. (United Kingdom)
Robert J. Collins, Heriot-Watt Univ. (United Kingdom)
Karen J. Gordon, Heriot-Watt Univ. (United Kingdom)
Paul D. Townsend, Univ. College, Cork (Ireland)
Gerald S. Buller, Heriot-Watt Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 6780:
Quantum Communications Realized
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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