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Electronics Letters

Enhanced single photon fringe visibility in a 10 km-long prototype quantum cryptography channel

Paul D. Townsend, A. Ougazzaden, P. R. Tapster

Published Jul 8, 1993• 111 citations
Publisher

Abstract

High visibility (V = 0.985) single photon fringe measurements in a 10 km long, optical fibre-based, time- and polarisation-division Mach-Zehnder interferometer are reported. The ability of the system to transmit key data in a quantum cryptography scheme is assessed.
DOI
10.1049/el:19930862

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