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National research infrastructure for clock network services: CITAF

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F63839172%3A_____%2F22%3A10133518" target="_blank" >RIV/63839172:_____/22:10133518 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12233/2635013/National-research-infrastructure-for-clock-network-services---CITAF/10.1117/12.2635013.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12233/2635013/National-research-infrastructure-for-clock-network-services---CITAF/10.1117/12.2635013.short</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1117/12.2635013" target="_blank" >10.1117/12.2635013</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    National research infrastructure for clock network services: CITAF

  • Original language description

    National time and frequency dissemination networks are being developed in many countries; also international connections are being established. In the contribution we present Czech Infrastructure for Time and Frequency as a non-commercial, open activity focused on the transfer of accurate time and very stable frequency using optical networks. The national optical infrastructure for time and frequency transfer is operated on top of the CESNET network infrastructure, to have operational cost under control. We also address actually running and planned upgrades and future development plans regarding wavelength bands and considered geographic extensions. We will also focus on creation of bidirectional dark channels on different wavebands within shared fibers together with bidirectional compensation of fiber losses. Single path bidirectional amplification utilizing lumped optical amplifiers is sensitive to feedback from fiber line like back scattering and reflections and in case of increased feedback can produce unwanted oscillations, which potentially interfere with parallel data transmissions. We will also briefly mention the CLONETS-DS project working on design study for coherent Pan-European time and frequency dissemination network, which would connect national networks and provide different services based on time and frequency for a wide range of users.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20202 - Communication engineering and systems

Result continuities

  • Project

    <a href="/en/project/LM2018140" target="_blank" >LM2018140: e-Infrastructure CZ</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings Volume 12233, Infrared Remote Sensing and Instrumentation XXX; 122330C (2022)

  • ISBN

    978-1-5106-5450-1

  • ISSN

    1996-756X

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    nestrankovano

  • Publisher name

    SPIE.digital library

  • Place of publication

    San Diego, California, United States

  • Event location

    San Diego, California, United States

  • Event date

    Aug 21, 2022

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000882946600010