DocumentCode
2922591
Title
Progress in the LPTF cesium beam frequency standard
Author
Makdissi, A. ; Berthet, J.-P. ; de Clercq, E.
Author_Institution
Obs. de Paris, Meudon, France
fYear
1998
fDate
6-10 July 1998
Firstpage
16
Lastpage
17
Abstract
The present short term stability of our optically pumped frequency standard is /spl sigma//sub y/(/spl tau/)=3.8/spl middot/10/sup -13/ /spl tau//sup - 1/2 /. A great deal of work has been performed in order to reduce the uncertainties of this standard. An example is given with two of them, associated to the second order Doppler effect and to the presence of a microwave field outside the Ramsey cavity.
Keywords
Doppler shift; atomic beams; atomic clocks; caesium; frequency stability; frequency standards; measurement uncertainty; optical pumping; Allan standard deviation; Cs; Ramsey cavity; TOF dependent shifts; Zeeman sublevel; cesium beam frequency standard; microwave field; microwave leakage effect; microwave spectra; optically pumped frequency standard; second order Doppler effect; short term stability; uncertainties; Frequency estimation; Laser beams; Laser transitions; Masers; Optical beams; Optical pumping; Optical saturation; Pump lasers; Stability; Uncertainty;
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.1998.699735
Filename
699735
Link To Document