Passive Optical Network Approach to Gigahertz-Clocked Multiuser Quantum Key Distribution

Author

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

Author_Institution

Sch. of Eng. & Phys. Sci., Heriot-Watt Univ., Edinburgh

Volume

43

Issue

2

fYear

2007

Firstpage

130

Lastpage

138

Abstract

We present the application of quantum key distribution (QKD) technologies to fiber-based broad-band passive optical access networks. This application is based on our 850-nm wavelength gigahertz clock-rate single-receiver system, is compatible with existing telecommunications fiber and exploits a wavelength band not currently utilized in access networks. The developed QKD networks are capable of transmitting over distances consistent with the span of access links for metropolitan networks (10 km), at clock frequencies ranging up to 3 GHz

Keywords

metropolitan area networks; optical fibre subscriber loops; optical receivers; quantum cryptography; 10 km; 3 GHz; 850 nm; access links; broadband optical networks; clock-rate single receiver system; fiber-based optical networks; gigahertz-clocked multiuser; metropolitan networks; optical access networks; passive optical network; passive optical networks; quantum key distribution; telecommunications fiber; Clocks; Cryptography; Optical crosstalk; Optical fiber communication; Optical fiber networks; Optical fiber polarization; Optical receivers; Optical transmitters; Passive optical networks; Wavelength division multiplexing; Communications systems; cryptography; data security; optical fiber communications; quantum cryptography; quantum key distribution (QKD);

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2006.887175

Filename

4063452