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.

Keywords

Quantum cryptographyVisibilityInterferometryQuantum key distributionOpticsPhotonMach–Zehnder interferometerChannel (broadcasting)PhysicsQuantum channelPhoton countingKey (lock)CryptographyComputer scienceQuantumElectronic engineeringQuantum entanglementTelecommunicationsQuantum informationEngineeringQuantum mechanicsAlgorithm

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Publication Info

Year
1993
Type
article
Volume
29
Issue
14
Pages
1291-1293
Citations
109
Access
Closed

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P. D. Townsend, A. Ougazzaden, P. R. Tapster (1993). Enhanced single photon fringe visibility in a 10 km-long prototype quantum cryptography channel. Electronics Letters , 29 (14) , 1291-1293. https://doi.org/10.1049/el:19930862

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DOI
10.1049/el:19930862