New design for a high performance optically pumped cesium beam tube

Author

Giordano, V. ; Hamel, A. ; Petit, P. ; Théobald, G. ; Dimarcq, N. ; Cérez, P. ; Audoin, C.

Author_Institution

Lab. de l´´Horloge Atomique, Univ. Paris-Sud, Orsay, France

Volume

38

Issue

4

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

350

Lastpage

357

Abstract

An optically pumped cesium beam resonator has been designed including three successive magnetic field regions. The optical interactions take place in the first and third regions, where the magnetic field has the required value of 3*10/sup -5/ T. The microwave interaction occurs in the intermediate region, where the value of the C-field is typically set to 4*10/sup -6/ T. It has been verified that the magnetic field profile along the cesium beam does not induce Majorana transitions. Using a single laser diode emitting at 852 nm with a linewidth of about 30 MHz, the resonator gives an excellent amplitude signal to noise ratio equal to 20000 in a 1-Hz bandwidth.<>

Keywords

atomic clocks; caesium; masers; 1 Hz; 30 MHz; 3E-5 T; 4E-6 T; 852 nm; C-field; Cs atomic clock; Cs beam tube; bandwidth; laser diode pump; linewidth; magnetic field profile; masers; microwave interaction; optical interactions; signal to noise ratio; successive magnetic field regions; Bandwidth; Diode lasers; Laser beams; Laser excitation; Magnetic fields; Optical beams; Optical design; Optical pumping; Optical resonators; Signal to noise ratio;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.84274

Filename

84274