Gigahertz-clocked quantum key distribution in passive optical networks

Veronica Fernandez; Robert J. Collins; Karen J. Gordon; Paul D. Townsend; Gerald S. Buller

doi:10.1117/12.732476

10 September 2007 Gigahertz-clocked quantum key distribution in passive optical networks

Veronica Fernandez, Robert J. Collins, Karen J. Gordon, Paul D. Townsend, Gerald S. Buller

Proceedings Volume 6780, Quantum Communications Realized; 678004 (2007) https://doi.org/10.1117/12.732476
Event: Optics East, 2007, Boston, MA, United States

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).

Citation Download Citation

Veronica Fernandez, Robert J. Collins, Karen J. Gordon, Paul D. Townsend, and Gerald S. Buller "Gigahertz-clocked quantum key distribution in passive optical networks", Proc. SPIE 6780, Quantum Communications Realized, 678004 (10 September 2007); https://doi.org/10.1117/12.732476

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