Title :
Optical pumping rate effects in cesium beam frequency standards
Author :
Tremblay, P. ; Michaud, A. ; Jacques, C.
Author_Institution :
Dept. de Genie Electr., Laval Univ., Que., Canada
Abstract :
The influence of optical pumping and detection rates on the cesium beam frequency standard is evaluated. It is shown that pumping and detection parameters have a large impact on cavity-phase-dependent and second-order Doppler effect frequency shifts. A supplementary parameter is needed in order to evaluate the error budget of the optical operated clock. Variations in the pumping conditions, such as laser intensity, should be avoided since they will be converted into frequency fluctuations.<>
Keywords :
Doppler effect; atomic beams; atomic photoexcitation; caesium; frequency measurement; laser beam applications; measurement standards; optical pumping; Ramsey pattern; cavity phase dependent shifts; detection rates; frequency fluctuations; frequency standards; laser intensity; measurement standards; optical pumping; second-order Doppler effect frequency shifts; Clocks; Doppler effect; Fluctuations; Frequency conversion; Laser beams; Laser excitation; Optical detectors; Optical frequency conversion; Optical pumping; Pump lasers;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.109968
