Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing
- 1 January 1997
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 33 (3), 188-190
- https://doi.org/10.1049/el:19970147
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 multi-service network testbed (LEANET). Error-free operation of the data channel is demonstrated with no degradation of the quantum channel performance.Keywords
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