Composite-Fringe Atom Interferometry for High-Dynamic-Range Sensing
TLDR
In this article, composite fringes are obtained from sets of measurements with slightly varying interrogation times, as in a moir\'e effect, and analyzed analytically the performance gain in this approach and the trade-offs it entails between sensitivity, dynamic range, and bandwidth.Abstract:
Atom interferometers offer excellent sensitivity to gravitational and inertial signals but have limited dynamic range. We introduce a scheme that improves this trade-off by a factor of 50 using composite fringes, obtained from sets of measurements with slightly varying interrogation times, as in a moir\'e effect. We analyze analytically the performance gain in this approach and the trade-offs it entails between sensitivity, dynamic range, and bandwidth, and we experimentally validate the analysis over a wide range of parameters. Combining composite-fringe measurements with a particle-filter estimation protocol, we demonstrate continuous tracking of a rapidly varying signal over a span 2 orders of magnitude larger than the dynamic range of a traditional atom interferometer.read more
Citations
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High-accuracy inertial measurements with cold-atom sensors
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Advances toward fieldable atom interferometers
TL;DR: In this paper , the authors review the field of atom interferometer inertial sensors and present a navigation model that aids in the connection of parameters and performance of interferometers to actual quantities of interest to the navigation community.
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Rotation sensing with improved stability using point-source atom interferometry
Chen Avinadav,Chen Avinadav,Dimitry Yankelev,Dimitry Yankelev,Moshe Shuker,Ofer Firstenberg,Nir Davidson +6 more
TL;DR: In this article, two methods to stabilize the ratio between the interferometer signal and the actual rotation rate in point-source atom interferometry are introduced and experimentally verified.
Journal ArticleDOI
Atom interferometry with thousand-fold increase in dynamic range.
TL;DR: This methodology for substantially extending the dynamic range of atom interferometers without compromising their sensitivity, stability, and bandwidth is developed and can considerably improve the operation of interferometric sensors in challenging, uncertain, or rapidly varying conditions.
Journal ArticleDOI
Self-alignment of a large-area dual-atom-interferometer gyroscope using parameter-decoupled phase-seeking calibrations
Yao Zhanwei,Chen Honghui,Lu Sibin,Runbing Li,Ze-Xi Lu,Chen Xiaoli,Yu Genghua,Jiang Min,Sun Chuan,Wei-Tou Ni,Jin Wang,Mingsheng Zhan +11 more
TL;DR: In this article, a Mach-Zehnder-type dual-atom-interferometer gyroscope with an interrogation arm of 40 cm length and the interference area up to $1.2 was reported.
References
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Proceedings Article
The Unscented Particle Filter
TL;DR: This paper proposes a new particle filter based on sequential importance sampling that outperforms standard particle filtering and other nonlinear filtering methods very substantially and is in agreement with the theoretical convergence proof for the algorithm.
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Optics and interferometry with atoms and molecules
TL;DR: The development of wave optics for light brought many new insights into our understanding of physics, driven by fundamental experiments like the ones by Young, Fizeau, Michelson-Morley and others as mentioned in this paper.
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Atomic interferometry using stimulated Raman transitions
Mark A. Kasevich,Steven Chu +1 more
TL;DR: The mechanical effects of stimulated Raman transitions on atoms have been used to demonstrate a matter-wave interferometer with laser-cooled sodium atoms that has observed interference for wave packets that have been separated by as much as 2.4 mm.
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High-precision gravity measurements using atom interferometry
TL;DR: In this article, an atom interferometer that can measure g, the local acceleration due to gravity, with a resolution of Δg/g = 2 × 10−8 after a single 1.3 s measurement cycle was built.
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Precision Rotation Measurements with an Atom Interferometer Gyroscope
TL;DR: In this article, a Sagnac-effect atom interferometer gyroscope using stimulated Raman transitions was used to coherently manipulate atomic wave packets, measured the Earth's rotation rate and demonstrated a short-term sensitivity to rotations of $2.