DocumentCode
2939879
Title
An improved, optically-pumped, primary frequency standard
Author
Hasegawa, A. ; Fukuda, K. ; Kotake, N. ; Kajita, M. ; Morikawa, T. ; Lee, W.D. ; Nelson, C. ; Jennings, D.A. ; Mullen, L. ; Shiriey, J.H. ; Drullinger, R.
Author_Institution
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
fYear
1998
fDate
6-10 July 1998
Firstpage
177
Lastpage
178
Abstract
An improved primary frequency standard based on an optically-pumped, thermal, atomic-beam has been jointly developed by CRL and NIST. The design details along with the first evaluation and comparison with NIST´s existing standard are presented.
Keywords
atomic beams; atomic clocks; caesium; frequency standards; masers; measurement uncertainty; optical pumping; optical saturable absorption; radiation pressure; Cs; Rabi line overlap shifts; Ramsey signal; Zeeman frequency; atomic resonance; cavity pulling; clock operating system; frequency stabilized laser; optically-pumped thermal atomic-beam; primary frequency standard; saturated absorption; uncertainty limit; Atom optics; Atomic beams; Laser noise; NIST; Optical saturation; Optical sensors; Radio frequency; Resonance; Servomechanisms; Standards development;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location
Washington, DC, USA
Print_ISBN
0-7803-5018-9
Type
conf
DOI
10.1109/CPEM.1998.699846
Filename
699846
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