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Article Dans Une Revue Applied Physics B - Laser and Optics Année : 2008

Limits to the sensitivity of a low noise compact atomic gravimeter

Résumé

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.
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Dates et versions

hal-00203007 , version 1 (08-01-2008)

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J. Le Gouët, Tanja Mehlstäubler, Jaewan Kim, Sébastien Merlet, Andre Clairon, et al.. Limits to the sensitivity of a low noise compact atomic gravimeter. Applied Physics B - Laser and Optics, 2008, 92 (2), pp.133-144. ⟨10.1007/s00340-008-3088-1⟩. ⟨hal-00203007⟩
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