Title :
Implementation of the beam reversal technique on compact cesium clocks: towards an improvement in accuracy
Author :
Chassagne, Luc ; Hamouda, Frederic ; Théobald, Genevieve ; Crez, P.
Author_Institution :
Lab. de l´´Horloge Atomique, CNRS, Orsay, France
Abstract :
Reports the evaluation of the residual phase difference /spl utri//spl phi/ in a short (18 cm) Ramsey cavity by implementing the beam reversal technique in an optically pumped cesium beam clock. /spl utri//spl phi/ is measured to be 21 /spl plusmn/1.5 /spl mu/rad, allowing a more accurate evaluation of the frequency performance of this small cesium clock. Finally, the clock accuracy is equal to 1.1/spl middot/10/sup -13/.
Keywords :
atomic clocks; caesium; cavity resonators; frequency standards; optical pumping; 18 cm; Cs; beam reversal technique; clock accuracy; compact cesium clocks; frequency performances; optically pumped clock; residual phase difference; short Ramsey cavity; Clocks; Frequency measurement; Laboratories; Laser beams; Laser excitation; Microwave magnetics; Optical beams; Optical pumping; Optical resonators; Ovens;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
