First cross-border trial of quantum key distribution sharing fiber line with data and accurate time transmissions

Josef Vojtech; Rudolf Vohnout; Ondřej Havliš; Petr Pospíšil; Martin Šlapák; Radek Velc; Lada Altmannová; Tomáš Horváth; Jan Kundrát; Michal Hažlinský; Elisabeth Andriantsarazo; Piotr Ridlichowski

doi:10.1117/12.2633616

4 October 2022 First cross-border trial of quantum key distribution sharing fiber line with data and accurate time transmissions

Josef Vojtech, Rudolf Vohnout, Ondřej Havliš, Petr Pospíšil, Martin Šlapák, Radek Velc, Lada Altmannová, Tomáš Horváth, Jan Kundrát, Michal Hažlinský, Elisabeth Andriantsarazo, Piotr Ridlichowski

Author Affiliations +

Proceedings Volume 12238, Quantum Communications and Quantum Imaging XX; 122380H (2022) https://doi.org/10.1117/12.2633616
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

This contribution focuses on experimental verification of the QKD system deployment in a multi-domain network environment managed by Czech and Polish National Research and Educational Network (NREN) operators. We demonstrate full functionality of such a solution for transmission of secret keys in boundary conditions, and with this we open up new possibilities for further use of extremely secure communication between two neighboring network entities, and the services built upon it. Moreover, we have shared the cross-border link among strong QKD service channels, accurate time, and classical data channels together with weak quantum channel to reduce the total number of optical fibers needed for transmission. To our knowledge, this is the first shared cross-border QKD transmission in the region of Central and Eastern Europe (CEE).

Conference Presentation

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Josef Vojtech, Rudolf Vohnout, Ondřej Havliš, Petr Pospíšil, Martin Šlapák, Radek Velc, Lada Altmannová, Tomáš Horváth, Jan Kundrát, Michal Hažlinský, Elisabeth Andriantsarazo, and Piotr Ridlichowski "First cross-border trial of quantum key distribution sharing fiber line with data and accurate time transmissions", Proc. SPIE 12238, Quantum Communications and Quantum Imaging XX, 122380H (4 October 2022); https://doi.org/10.1117/12.2633616

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