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