Towards shared fiber dissemination infrastructure for precise time, coherent optical frequency and entanglement transfers with sensing option

0582313 - ÚPT 2024 RIV US eng C - Conference Paper (international conference)
Vojtěch, J. - Novák, T. - Andriantsarazo, E. - Smotlacha, V. - Havliš, O. - Vohnout, R. - Špaček, M. - Šlapák, M. - Horváth, T. - Altmannová, L. - Velc, R. - Pospíšil, P. - Kundrát, J. - Čížek, Martin - Hrabina, Jan - Řeřucha, Šimon - Pravdová, Lenka - Lazar, Josef - Číp, Ondřej - Kuna, Alexander - Roztočil, J.
Towards shared fiber dissemination infrastructure for precise time, coherent optical frequency and entanglement transfers with sensing option.
Infrared Remote Sensing and Instrumentation XXXI. Bellingham: SPIE, 2023 - (Strojnik, M.; Helbert, J.), Roč. 12686 (2023), č. článku 1268604. Proceedings of SPIE, 12686. ISBN 9781510665866. ISSN 0277-786X.
[Infrared Remote Sensing and Instrumentation /31./. San Diego (US), 21.08.2023]
R&D Projects: GA MV(CZ) VK01030193
Institutional support: RVO:68081731 ; RVO:67985882
Keywords : coherent optical frequency * infrastructure * optical amplification * optical fibre * precise time * time metrology * White Rabbit
OECD category: Telecommunications; Telecommunications (URE-Y)
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12686/2677256/Towards-shared-fiber-dissemination-infrastructure-for-precise-time-coherent-optical/10.1117/12.2677256.short

In the ever-advancing realm of modern technology, the demand for unparalleled precision and stability in timekeeping and frequency control has surged to unprecedented heights. As our interconnected world rellies more than ever on intricate synchronization and seamless communication, the development of cutting-edge optical infrastructure has emerged as a cornerstone in meeting these exacting demands. There has been obvious increased continuous focus on precise time and frequency transmission dissemination at a national and international level recently. We would like to present the situation in the Czech Republic, our strategy, approach, and our experience with a non-commercial, cost-effective solution that utilizes optical networks shared with other traffic. The presented solution provides accurate time and stable frequency at a lower operational cost, using the shared spectrum of the CESNET3 network infrastructure.
Permanent Link: https://hdl.handle.net/11104/0350432