Interferometry with Faraday mirrors for quantum cryptography
نویسندگان
چکیده
Quantum Cryptography over 23km of installed Telecom fiber using a novel interferometer with Faraday mirrors is presented. The interferometer needs no alignment nor polarization control and features 99.8% fringe visibility. A secret key of 20kbit length with a error rate of 1.35% for 0.1 photon per pulse was produced. PACS Nos. 3.65b, 42.50
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