REFIMEVE, the fiber metrology network with a European vocation
REFIMEVE
The french Equipex project REFIMEVE+ (or MEFINEV+ for Metrological Fiber Network with European Vocation+) is based on a scientific innovation, the ability to transfer an ultra-stable optical frequency on Internet over long-distances without any traffic disruption. Initially from 2012 to 2020, the project has been extended up to 2024.
Currently the transfer frequency faces the difficulty of transporting information without degradation when clocks are separated by hundreds or even thousands of kilometers. This can be made if one of the clocks is transportable, but this solution is mostly not flexible and hard to organize. Otherwise, they are made through one or more satellites of the GPS (Global Positioning System) or telecommunication satellites.
