Title :
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
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;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250905
