We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Limits to the sensitivity of a low noise compact atomic gravimeter.
- Authors
Le Gouët, J.; Mehlstäubler, T. E.; S. Kim; Merlet, S.; Clairon, A.; Landragin, A.; Dos Santos, F. Pereira
- 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 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.
- Subjects
NOISE measurement; INTERFEROMETERS; GRAVIMETERS (Geophysical instruments); SCIENTIFIC apparatus &; instruments; SEISMOMETERS; LASERS; VIBRATION (Mechanics)
- Publication
Applied Physics B: Lasers & Optics, 2008, Vol 92, Issue 2, p133
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-008-3088-1