Limits to the sensitivity of a low noise compact atomic gravimeter

被引：291
|
作者：
Le Gouet, J. [1 ]
Mehlstaeubler, T. E. [1 ]
Kim, J. [1 ]
Merlet, S. [1 ]
Clairon, A. [1 ]
Landragin, A. [1 ]
Dos Santos, F. Pereira [1 ]
机构：
[1] Observ Paris, UPMC, CNRS UMR 8630, LNE SYRTE, F-75014 Paris, France
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 92卷 / 02期
关键词：
D O I：
10.1007/s00340-008-3088-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 1.4x10(-8) g 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.
引用
收藏
页码：133 / 144
页数：12
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