CPT Maser Clock Evaluation for Galileo

Filippo Levi, Aldo Godone, Salvatore Micalizio, C. Calosso, Edoardo Detoma, Pierluigi Morsaniga, Renzo Zanello

Abstract: The possibility of using the Coherent Population Trapping (CPT) mechanism for the implementation of atomic frequency standards was proposed in the last decade, and experimental work is currently being carried on in various laboratories. The Istituto Elettrotecnico Nazionale (IEN) “G. Ferraris,” with the support of Alenia Spazio, is currently developing under an ESA contract, a Rb CPT maser frequency standard prototype (breadboard), with the aim to evaluate its ultimate stability capabilities in the range from 1 s to 1 day. The expected short-term stability is 10-12 t -1/2, with a flicker floor of 10-14. This stability performance, if achieved, would be of great interest for the Galileo satellite navigation system, lying between the stability performances of a traditional lamp-pumped rubidium and that of a passive H-maser with a significant reduction of complexity.
Published in: Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting
December 3 - 5, 2002
Hyatt Regency Reston Town Center
Reston, Virginia
Pages: 139 - 149
Cite this article: Levi, Filippo, Godone, Aldo, Micalizio, Salvatore, Calosso, C., Detoma, Edoardo, Morsaniga, Pierluigi, Zanello, Renzo, "CPT Maser Clock Evaluation for Galileo," Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, December 2002, pp. 139-149.
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