Next-Generation Chip Scale Atomic Clocks - Assessing the emerging physical platforms: microwave transitions in cold atoms and in trapped ions, and optical transitions in warm vapours
Assessing the emerging physical platforms: microwave transitions in cold atoms and in trapped ions, and optical transitions in warm vapours
We here relate two presentations devoted to Next-Generation Chip Scale Atomic Clocks (NG-CSACs) organized and chaired by DG DEFIS Unit B.2 and given in October/November 2021 to an audience composed by policy officers from DG JRC, DG DEFIS, DG CNECT, DG DIGIT, DG MOVE, REA, EISMEA, HaDEA, COUNCIL, EUSPA, EDA, and ESA.
A miniature primary frequency standard, that is a device with a frequency stability similar to that of a Caesium beam tube and the typical size, weight and power footprints of a chip-scale atomic clock would have an application space much wider than the one attainable by CSACs of the current generation. We provide an overview of the research efforts for the development of NG-CSACs: we describe the different physical platforms which are being investigated, analysing the technical bottlenecks and assessing their technological readiness level. Continuous progress both in core and in enabling technologies is taking place, driven in particular by the US DARPA support over the last ten years, and physical packages with very promising properties are being developed. However, a fully-integrated commercially viable NG-CSAC has yet to emerge.
TRAVAGNIN Martino;
2022-02-25
Publications Office of the European Union
JRC128331
978-92-76-48726-5 (online),
1831-9424 (online),
EUR 31003 EN,
OP KJ-NA-31003-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC128331,
10.2760/525422 (online),
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