Project: Accurate time/frequency comparison and dissemination through optical telecommunication networks
Optical atomic clocks could be used to redefine the second as they are more accurate than the microwave atomic clocks used today. However, the only way to check the performance of these optical atomic clocks is by comparing them with other atomic clocks, and the current satellite-based techniques for doing this are simply not accurate enough. This project will investigate techniques for comparing remote optical clocks, separated by distances of up to 1500 km. The project will study the fundamental limitations of optical fibre links and aims to reduce the contribution of these links to the uncertainty of the frequency calibration. As well as contributing to a redefinition of the second and fundamental physics experiments, the dissemination of atomic time through optical fibres could also provide a backup for GPS timing in power grids and mobile telecommunications networks.
| Acronym | SIB02 NEAT-FT (Reference Number: SIB02) |
| Duration | 01/06/2012 - 31/05/2015 |
| Project Topic | Metrology |
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Project Results (after finalisation) |
See Website |
| Website | visit project website |
| Network | EMRP |
| Call | EMRP Call 2011 - Health, SI Broader Scope and New Technologies |