By Topic

Self-pulsing in alkali rf-discharge lamps

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
J. G. Coffer ; Physical Sciences Laboratories, The Aerospace Corporation, 2310 E. El Segundo Blvd., El Segundo, CA 90245 ; M. Huang ; J. C. Camparo

Rubidium vapor-cell atomic clocks are the “workhorse” of precise timekeeping for many GNSS missions. As is well known, the alkali rf-discharge lamp in these clocks is not only responsible for producing the atomic clock signal; it also has a significant influence on the clock's output frequency via the light-shift effect. Here, we discuss our discovery of self-pulsing in alkali rf-discharge lamps, which has the potential to periodically vary a Rb clock's signal-to-noise ratio and (via the light-shift effect) the clock's frequency. This self-pulsing is low frequency, on the order of one hertz in our experiments, and is not related to the self-pulsing reported a number of years ago by Robert Shaw, which was near 10 kHz and due to ion-acoustic wave generation in the discharge.

Published in:

2012 IEEE International Frequency Control Symposium Proceedings

Date of Conference:

21-24 May 2012