Title :
Development of an optically pumped Cs frequency standard at the NRLM
Author :
Ohshima, Shin-Ichi ; Nakadan, Yasuhiro ; Koga, Yasuki
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
fDate :
9/1/1988 12:00:00 AM
Abstract :
Describes development of an optically pumped Cs frequency standard aiming at a primary frequency standard. Using this laboratory-type standard, a Ramsey resonance spectrum was observed. It has been shown that a laser power of about 1 mW is almost sufficient for two-frequency optical pumping. It has also been shown that the C-field strength can be measured using Zeeman coils by establishing a population difference among the Zeeman sublevel with σ+ polarized laser light
Keywords :
Zeeman effect; atomic beams; caesium; frequency measurement; laser beam applications; light polarisation; measurement standards; optical pumping; 1 mW; C-field strength; Cs; Ramsey resonance spectrum; Zeeman coils; Zeeman sublevel; optically pumped Cs frequency standard; polarized laser light; population difference; primary frequency standard; two-frequency optical pumping; Atomic beams; Coils; Frequency; Laboratories; Optical polarization; Optical pumping; Optical resonators; Optical saturation; Pump lasers; Standards development;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
