Accurate time/frequency comparison and dissemination through optical telecommunication networks
Public support
Provider
Ministry of Education, Youth and Sports
Programme
—
Call for proposals
FP6-2005-Energy-4
Main participants
Ústav fotoniky a elektroniky AV ČR, v. v. i.
Contest type
RP - Co-financing of EC programme
Contract ID
MSMT-45248/2013-7
Alternative language
Project name in Czech
Accurate time/frequency comparison and dissemination through optical telecommunication networks
Annotation in Czech
Demonstration of frequency transfer with 17 digits accuracy Demonstration of clock based relativistic geodesy at the decimeter level Demonstration of time transfer at the 100 ps level Demonstration of a baseline for the ACES mission
Scientific branches
R&D category
ZV - Basic research
CEP classification - main branch
JA - Electronics and optoelectronics
CEP - secondary branch
—
CEP - another secondary branch
—
OECD FORD - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
20201 - Electrical and electronic engineering
Completed project evaluation
Provider evaluation
U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)
Project results evaluation
The project has investigated an alternative to established satellite based time and frequency methods for phase-coherent comparison of remotely located optical clocks, and new techniques for time transfer using optical fibre links leading to an improvement of clock comparisons at least by one order of magnitude. We developed techniques that enable comparisons of the best optical clocks on a relative uncertainty level of about 1E‑18 at one day integration time. We demonstrated time and frequency transfer and time dissemination using optical fibres used in parallel with Internet data traffic.
Solution timeline
Realization period - beginning
Jan 1, 2013
Realization period - end
May 31, 2015
Project status
U - Finished project
Latest support payment
Feb 20, 2015
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP16-MSM-7A-U/01:1
Data delivery date
Oct 11, 2017
Finance
Total approved costs
1,922 thou. CZK
Public financial support
1,054 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
868 thou. CZK