Experimental multiuser quantum key distribution network using a wavelength-addressed bus architecture

Author

Kumavor, Patrick D. ; Beal, A. Craig ; Donkor, Eric ; Wang, Bing C.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Connecticut, Storrs, CT

Volume

24

Issue

8

fYear

2006

Firstpage

3103

Lastpage

3106

Abstract

A six-user quantum key distribution network implemented on a bus topology is experimentally demonstrated. The network employs the BB84 protocol to transmit cryptographic keys encoded unto the phase states of highly attenuated laser light to distances of up to 31 km in a standard telecommunication-grade fiber. Each user on the network is assigned a unique wavelength for communication with the network server at a time. The measured quantum bit error rate and sifted key rate compare favorably with theoretical results

Keywords

encoding; error statistics; optical fibre communication; protocols; quantum cryptography; quantum optics; 31 km; BB84 protocol; bus topology; cryptographic keys; encoding; multiuser quantum key distribution; quantum bit error rate; Cryptographic protocols; Cryptography; Fiber lasers; Laser theory; Network servers; Optical fiber communication; Quantum mechanics; Telecommunication network topology; Telecommunication standards; Wavelength measurement; Bus topology; multiuser; network architecture; quantum key distribution (QKD); wavelength-division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2006.878289

Filename

1667830