Title :
Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing
Author_Institution :
BT Labs., Ipswich, UK
fDate :
1/30/1997 12:00:00 AM
Abstract :
Wavelength division multiplexing (WDM) is used to add a secure quantum key distribution channel (λ=1300 nm) to a conventional 1.2 Gbit/s data channel (λ~1550 nm) operating over 28 km of installed fibre in BT´s London and East Anglia multiservice network testbed (LEANET). Error-free operation of the data channel is demonstrated with no degradation of the quantum channel performance
Keywords :
cryptography; data communication; digital communication; error statistics; optical fibre communication; wavelength division multiplexing; 1.2 Gbit/s; 1300 nm; 28 km; BER; LEANET; WDM; bit error rate; conventional data transmission; data channel; error-free operation; installed fibre; multiservice network testbed; quantum channel performance; quantum cryptographic key distribution; secure quantum key distribution channel; simultaneous transmission; wavelength-division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970147
