Quantum key distribution over WDMs and optical switches to combine the quantum channel with synchronization channels

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Poppe, A.; Huebel, H.; Karinou, F.; Blauensteiner, B.; Schrenk, B.; Zeilinger, A. (Quantum Optics, Quantum Nanophysics and Quantum Information, Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria)
Lornser, T.; Meyenburg, M.; Querasser, E. (Austrian Research Centers GmbH (ARC), Tech Gate Vienna, Donau-City-Strae 1, 1220 Vienna, Austria)
Zeilinger, A. (Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria)

We use standard CWDM-telecom equipment and optical switches to combine entangled photons with all needed signalling channels and perform QKD via a single optical fiber over a distance of 25km.