Frequency stabilization of laser diode to the 6S-8S two-photon transitions in cesium atoms in a vapor cell placed in an external cavity

Author

Uehara, Tomoyuki ; Sugiyama, Kazuhiko ; Kitano, Masao

Author_Institution

Grad. Sch. of Electron. Sci. & Eng., Kyoto Univ., Kyoto, Japan

fYear

2012

fDate

1-6 July 2012

Firstpage

268

Lastpage

269

Abstract

We pursue high frequency stability by using a large number of thermal atoms to investigate a possibility of local oscillators in the optical frequency standards. We frequency stabilize an extended-cavity laser diode to the 6S-8S two-photon transition in cesium atoms. We evaluated the frequency stability to be 4.4×10^-14 at an averaging time of τ = 16 s. We observed that the long term stability was improved by stabilization of the intracavity power.

Keywords

atom-photon collisions; caesium; frequency standards; laser cavity resonators; laser frequency stability; laser transitions; oscillators; semiconductor lasers; two-photon processes; 6S-8S two-photon transitions; Cs; averaging time; cesium atoms; extended-cavity laser diode; external cavity; high frequency stability; intracavity power; local oscillators; long term stability; optical frequency standards; thermal atoms; vapor cell; Atom optics; Cavity resonators; Frequency modulation; Laser stability; Laser transitions; Measurement by laser beam; Thermal stability; Diode lasers; frequency control; frequency measurement; laser stability; measurement uncertainty; optical resonators; spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6250905

Filename

6250905