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Springer (part of Springer Nature), Applied Physics B: Lasers and Optics, 2(92), p. 133-144

DOI: 10.1007/s00340-008-3088-1

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Limits to the sensitivity of a low noise compact atomic gravimeter

Journal article published in 2008 by J. Le Gouët, T. E. Mehlstaeubler, Tanja E. Mehlstäubler, Jaewan Kim, Sébastien Merlet, Andre Clairon, Arnaud Landragin, Franck Pereira Dos Santos ORCID
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This paper is available in a repository.

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Abstract

30 pages, 14 figures ; International audience ; 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 $1.4\times 10^{-8}$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.