Modulation induced frequency shifts in a CPT-based atomic clock
Atomic Physics
2009-11-10 v1
Abstract
We investigate systematic errors associated with a common modulation technique used for phase sensitive detection of a coherent population trapping (CPT) resonance. In particular, we show that modification of the CPT resonance lineshape due to the presence of off-resonant fields leads to frequency shifts which may limit the stability of CPT-based atomic clocks. We also demonstrate that an alternative demodulation technique greatly reduces these effects.
Cite
@article{arxiv.physics/0404076,
title = {Modulation induced frequency shifts in a CPT-based atomic clock},
author = {D. F. Phillips and I. Novikova and C. Y. -T. Wang and M. Crescimanno and R. L. Walsworth},
journal= {arXiv preprint arXiv:physics/0404076},
year = {2009}
}
Comments
14 pages, 7 figures