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High-performance laser pumped rubidium frequency standard for satellite navigation
Auteur(s)
Bandi, T.
Calosso, C.E.
Date de parution
2011
In
Electronics Letters
Vol.
12
No
47
De la page
698
A la page
699
Résumé
Presented is a double-resonance continuous-wave laser-pumped rubidium
(Rb) atomic clock with a short-term stability of 4 × 10(-13) t(-1/2) for integration times 1 s ≤ t ≤ 1000 s, and a medium- to longterm stability reaching the 1 × 10(-14) level at 10(4) s. The clock uses an Rb vapour cell with increased diameter of 25 mm, accommodated
inside a newly developed compact magnetron-type microwave cavity.
This results in a bigger signal with reduced linewidth, and thus improved short-term stability from a clock with 1 dm(3) physics package volume only. The medium- to long-term clock stability is achieved by minimising the effects of light-shift and temperature coefficient on the atoms. Potential applications of the clock are discussed.
(Rb) atomic clock with a short-term stability of 4 × 10(-13) t(-1/2) for integration times 1 s ≤ t ≤ 1000 s, and a medium- to longterm stability reaching the 1 × 10(-14) level at 10(4) s. The clock uses an Rb vapour cell with increased diameter of 25 mm, accommodated
inside a newly developed compact magnetron-type microwave cavity.
This results in a bigger signal with reduced linewidth, and thus improved short-term stability from a clock with 1 dm(3) physics package volume only. The medium- to long-term clock stability is achieved by minimising the effects of light-shift and temperature coefficient on the atoms. Potential applications of the clock are discussed.
Identifiants
Type de publication
journal article
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