Limits to the sensitivity of a low noise compact atomic gravimeter
Atomic Physics
2009-01-06 v1
Abstract
A detailed analysis of the most relevant sources of phase noise in an atomic interferometer is carried out, both theoretically and experimentally. Even a short interrogation time of 100 ms allows our cold atom gravimeter to reach an excellent short term sensitivity to acceleration of g at 1s. This result relies on the combination of a low phase noise laser system, efficient detection scheme and good shielding from vibrations. In particular, we describe a simple and robust technique of vibration compensation, which is based on correcting the interferometer signal by using the AC acceleration signal measured by a low noise seismometer.
Cite
@article{arxiv.0801.1270,
title = {Limits to the sensitivity of a low noise compact atomic gravimeter},
author = {J. Le Gouët and Tanja Mehlstäubler and Jaewan Kim and Sébastien Merlet and Andre Clairon and Arnaud Landragin and Franck Pereira Dos Santos},
journal= {arXiv preprint arXiv:0801.1270},
year = {2009}
}
Comments
30 pages, 14 figures