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  Single-element dual-interferometer for precision inertial sensing

Yang, Y., Yamamoto, K., Huarcaya, V., Vorndamme, C., Penkert, D., Fernandez Barranco, G., et al. (2020). Single-element dual-interferometer for precision inertial sensing. Sensors (Switzerland), 20(17): 4986, pp. 1-17. Retrieved from http://arxiv.org/abs/2008.05602.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-00BE-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-00C2-D
Genre: Journal Article

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 Creators:
Yang, Yichao1, Author
Yamamoto, Kohei1, Author
Huarcaya, Victor1, Author              
Vorndamme, Christoph1, Author              
Penkert, Daniel1, Author              
Fernandez Barranco, Germán1, Author              
Schwarze, Thomas1, Author              
Esteban Delgado, Juan Jose1, Author              
Mehmet, Moritz1, Author              
Jia, Jianjun, Author
Heinzel, Gerhard1, Author              
Alvarez , Miguel Dovale1, Author
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Physics, Instrumentation and Detectors, physics.ins-det, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM, Physics, Optics, physics.optics
 Abstract: Tracking moving masses in several degrees of freedom with high precision and large dynamic range is a central aspect in many current and future gravitational physics experiments. Laser interferometers have been established as one of the tools of choice for such measurement schemes. Using sinusoidal phase modulation homodyne interferometry allows a drastic reduction of the complexity of the optical setup, a key limitation of multi-channel interferometry. By shifting the complexity of the setup to the signal processing stage, these methods enable devices with a size and weight not feasible using conventional techniques. In this paper we present the design of a novel sensor topology based on deep frequency modulation interferometry: the self-referenced single-element dual-interferometer (SEDI) inertial sensor, which takes simplification one step further by accommodating two interferometers in one optic. Using a combination of computer models and analytical methods we show that an inertial sensor with sub-picometer precision for frequencies above 10 mHz, in a package of a few cubic inches, seems feasible with our approach. Moreover we show that by combining two of these devices it is possible to reach sub-picometer precision down to 2 mHz. In combination with the given compactness, this makes the SEDI sensor a promising approach for applications in high precision inertial sensing for both next-generation space-based gravity missions employing drag-free control, and ground-based experiments employing inertial isolation systems with optical readout.

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 Dates: 2020-08-072020-08-312020
 Publication Status: Published in print
 Pages: 18 pages, 9 figures
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Title: Sensors (Switzerland)
Source Genre: Journal
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Pages: - Volume / Issue: 20 (17) Sequence Number: 4986 Start / End Page: 1 - 17 Identifier: -