Title :
Practical realization of a passive coherent population trapping frequency standard
Author :
Vanier, J. ; Levine, M. ; Kendig, S. ; Janssen, D. ; Everson, C. ; Delaney, M.
Author_Institution :
Kernco, Inc., Danvers, MA, USA
Abstract :
The paper describes the practical realization and characteristics of a small, totally autonomous, passive frequency standard based on the coherent population trapping (CPT) phenomenon. A description of the frequency standard, including physical characteristics, block diagrams of the optical control CPT resonance system and of the digital control electronics is given. The characteristics of the frequency standard relative to general functionality and frequency stability are given, as measured on several units.
Keywords :
atomic clocks; digital circuits; frequency standards; optical pumping; resonance; atomic clock; coherent population trapping; digital control electronics; optical control resonance system; optical pumping; passive frequency standard; Atom optics; Atomic measurements; Charge carrier processes; Electron traps; Frequency; Optical modulation; Optical pumping; Resonance; Stability; Stationary state;
Conference_Titel :
Frequency Control Symposium and Exposition, 2004. Proceedings of the 2004 IEEE International
Print_ISBN :
0-7803-8414-8
DOI :
10.1109/FREQ.2004.1418434
