Interferometry with Faraday mirrors for quantum cryptography
- 1 January 1997
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 33 (7), 586-588
- https://doi.org/10.1049/el:19970427
Abstract
Quantum cryptography over 23 km of installed telecommunications fibre using a novel interferometer with Faraday mirrors is presented. The interferometer needs no alignment nor polarisation control and features 99.8% fringe visibility. A secret key of 20 kbit length with an error rate of 1.35% for 0.1 photon per pulse was produced.Keywords
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This publication has 6 references indexed in Scilit:
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