Applied Physics B

, Volume 92, Issue 2, pp 133–144 | Cite as

Limits to the sensitivity of a low noise compact atomic gravimeter

  • J. Le Gouët
  • T.E. Mehlstäubler
  • J. Kim
  • S. Merlet
  • A. Clairon
  • A. Landragin
  • F. Pereira Dos SantosEmail author


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 1.4×10-8g at 1 s. 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.


Phase Noise Phase Lock Loop Raman Laser Relative Intensity Noise Atom Interferometer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • J. Le Gouët
    • 1
  • T.E. Mehlstäubler
    • 1
  • J. Kim
    • 1
  • S. Merlet
    • 1
  • A. Clairon
    • 1
  • A. Landragin
    • 1
  • F. Pereira Dos Santos
    • 1
    Email author
  1. 1.LNE-SYRTE, CNRS UMR 8630, UPMC, Observatoire de ParisParisFrance

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