Abstract
An experimental demonstration of a subcarrier-wave quantum cryptography system with superconducting single-photon detectors (SSPDs) that distributes a secure key in a single-mode fiber at distance of 25 km with a bit rate of 800 kbit/s, a distance of 100 km with a bit rate of 19 kbit/s, and a distance of 200 km with a bit rate of 0.18 kbit/s is described.
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Original Russian Text © A.V. Glejm, A.A. Anisimov, L.N. Asnis, Yu.B. Vakhtomin, A.V. Divochiy, V.I. Egorov, V.V. Kovalyuk, A.A. Korneev, S.M. Kynev, Yu.V. Nazarov, R.V. Ozhegov, A.V. Rupasov, K.V. Smirnov, M.A. Smirnov, G.N. Goltsman, S.A. Kozlov, 2014, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2014, Vol. 78, No. 3, pp. 266–270.
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Glejm, A.V., Anisimov, A.A., Asnis, L.N. et al. Quantum key distribution in an optical fiber at distances of up to 200 km and a bit rate of 180 bit/s. Bull. Russ. Acad. Sci. Phys. 78, 171–175 (2014). https://doi.org/10.3103/S1062873814030095
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DOI: https://doi.org/10.3103/S1062873814030095