CPT Maser Clock Evaluation for Galileo
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(exp -12) x tau(exp -1/2), with a flicker floor of 10(exp -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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2002
- Accession Number
- ADA484147
Entities
People
- Aldo Godone
- C. Calosso
- Edoardo Detoma
- Filippo Levi
- Pierluigi Morsaniga
- Renzo Zanello
- Salvatore Micalizio