Limits to the sensitivity of a low noise compact atomic gravimeter
| Autor: | Gouët, J. Le, Mehlstäubler, Tanja, Kim, Jaewan, Merlet, Sébastien, Clairon, Andre, Landragin, Arnaud, Santos, Franck Pereira Dos |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Applied Physics B: Lasers and Optics 92, 2 (2008) 133-144 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/s00340-008-3088-1 |
| Popis: | 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. Comment: 30 pages, 14 figures |
| Databáze: | arXiv |
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