Details
| Original language | English |
|---|---|
| Pages (from-to) | 133-144 |
| Number of pages | 12 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 92 |
| Issue number | 2 |
| Early online date | 27 Jun 2008 |
| Publication status | Published - Aug 2008 |
| Externally published | Yes |
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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 92, No. 2, 08.2008, p. 133-144.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Limits to the sensitivity of a low noise compact atomic gravimeter
AU - Le Gouët, J.
AU - Mehlstäubler, T. E.
AU - Kim, J.
AU - Merlet, S.
AU - Clairon, A.
AU - Landragin, A.
AU - Dos Santos, F. Pereira
PY - 2008/8
Y1 - 2008/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=47749151424&partnerID=8YFLogxK
U2 - 10.1007/s00340-008-3088-1
DO - 10.1007/s00340-008-3088-1
M3 - Article
AN - SCOPUS:47749151424
VL - 92
SP - 133
EP - 144
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 2
ER -