Title :
Practical realization of a passive coherent population trapping frequency standard
Author :
Vanier, Jacques ; Levine, Martin W. ; Kendig, S. ; Janssen, Daniel ; Everson, Cameron ; Delaney, Michael J.
Author_Institution :
Kernco Inc., Danvers, MA, USA
Abstract :
The paper outlines the practical realization and characteristics of a small, totally autonomous passive frequency standard based on the coherent population trapping (CPT) phenomenon. The frequency standard, including physical characteristics, block diagrams of the optical control CPT resonance system and of the digital control electronics, is described. The characteristics of the frequency standard relative to general functionality and frequency stability are given, as measured on several units.
Keywords :
atomic clocks; frequency standards; optical pumping; CPT resonance system; atomic clock; autonomous passive frequency standard; coherent population trapping; digital control electronics; frequency stability; light shift; optical control; optical pumping; Atom optics; Atomic measurements; Electron traps; Frequency; Optical modulation; Optical pumping; Optical variables control; Resonance; Stability; Stationary state; Atomic clock; coherent population trapping (CPT); frequency stability; light shift; optical pumping;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.858120
