Title :
Characteristics of a frequency stabilized and spectral narrowed laser diode system
Author :
Maeno, T. ; Saito, H. ; Umezu, J. ; Ohta, Y. ; Kajita, M. ; Hayashi, R.
Author_Institution :
Commun. Res. Lab., Tokyo, Japan
Abstract :
Frequency-stabilized and spectral-linewidth-narrowed laser diode systems are being developed for optical pumping of a cesium atomic clock. Frequency stabilization and reduction of spectral linewidth were carried out by utilizing optical feedback from a Fabry-Perot interferometer. Saturation absorption and fluorescence spectroscopy results are presented. It is shown that the long-term stability of optical locking is not sufficient for a practical atomic clock.<>
Keywords :
atomic clocks; atomic photoexcitation; atomic spectral line breadth; caesium; light interferometers; optical pumping; semiconductor junction lasers; Cs atomic clock; Fabry-Perot interferometer; fluorescence spectroscopy; laser frequency stability; long-term stability; optical feedback; optical locking; optical pumping; saturation absorption; semiconductor laser; spectral linewidth; spectral narrowed laser diode; Absorption; Atomic clocks; Diode lasers; Fabry-Perot interferometers; Fluorescence; Frequency; Optical feedback; Optical pumping; Spectroscopy; Stability;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.110010
