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Proceedings Paper

Gigahertz quantum cryptography
Author(s): Gerald S. Buller; Robert J. Collins; Patrick J. Clarke; Paul D. Townsend
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Paper Abstract

This paper describes progress in gigahertz-clocked quantum key distribution systems. It details current advances in both point-to-point and network applications. We will discuss possibilities for practical quantum key distribution using single-photon sources, and discuss the experimental system performance of GHz-clocked quantum key distribution systems focusing on issues of quantum bit error rate, net bit rate and transmission distance with different detector structures, concentrating on single-photon avalanche diode detectors, but also examining superconducting nanowire-based structures. The quantum key distribution system is designed to be environmentally robust and an examination of long-term system operation will be presented.

Paper Details

Date Published: 18 February 2011
PDF: 6 pages
Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79881R (18 February 2011); doi: 10.1117/12.888242
Show Author Affiliations
Gerald S. Buller, Heriot-Watt Univ. (United Kingdom)
Robert J. Collins, Heriot-Watt Univ. (United Kingdom)
Patrick J. Clarke, Heriot-Watt Univ. (United Kingdom)
Paul D. Townsend, Univ. College Cork (Ireland)


Published in SPIE Proceedings Vol. 7988:
Optical Transmission Systems, Switching, and Subsystems VIII
Yikai Su; Ernesto Ciaramella; Xiang Liu; Naoya Wada, Editor(s)

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