Title :
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
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;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.878289
