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Sensor noise in LISA Pathfinder: An extensive in-flight review of the angular and longitudinal interferometric measurement system


Jetzer, P; Tiwari, S; Lopez, D; Haney, M; Ebersold, M; Boitier, A; Hamilton, E; Xu, Y; Cavalleri, A; Cesarini, A; Cruise, A M; Danzmann, K; de Deus Silva, M; Diepholz, I; Dixon, G; Dolesi, R; Ferraioli, L; Ferroni, V; Fitzsimons, E D; Flatscher, R; Freschi, M; García, A; Gerndt, R; Gesa, L; Giardini, D; Gibert, F; Giusteri, R; Grimani, C; Grzymisch, J; Guzman, F; et al; Jetzer, Philippe (2022). Sensor noise in LISA Pathfinder: An extensive in-flight review of the angular and longitudinal interferometric measurement system. Physical review D, 106(8):082001.

Abstract

In a previous article, we have reported on the first subpicometer interferometer flown in space as part of ESA’s LISA Pathfinder mission, and have shown the residual sensor noise to be on the level of 32.0$^{+2.4}_{−1.7}$  fm/√Hz. This review provides a deeper and more complete overview of the full system and its interferometric mission performance under varying operational conditions, allowing a much more detailed view on the noise model. We also include the optical measurements of rotations through differential wave front sensing (DWS), which reached a sensitivity of as good as 100  prad/√Hz. We present more evidence for the long-term stability of the interferometric performance and components. This proves a solid foundation for future interferometry in space such as the LISA mission.

Abstract

In a previous article, we have reported on the first subpicometer interferometer flown in space as part of ESA’s LISA Pathfinder mission, and have shown the residual sensor noise to be on the level of 32.0$^{+2.4}_{−1.7}$  fm/√Hz. This review provides a deeper and more complete overview of the full system and its interferometric mission performance under varying operational conditions, allowing a much more detailed view on the noise model. We also include the optical measurements of rotations through differential wave front sensing (DWS), which reached a sensitivity of as good as 100  prad/√Hz. We present more evidence for the long-term stability of the interferometric performance and components. This proves a solid foundation for future interferometry in space such as the LISA mission.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:3 October 2022
Deposited On:18 Feb 2023 17:25
Last Modified:28 Jun 2024 01:42
Publisher:American Physical Society
ISSN:2470-0010
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1103/physrevd.106.082001
Project Information:
  • : FunderEuropean Space Agency
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  • : FunderDeutsches Zentrum für Luft- und Raumfahrt
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  • : FunderCentre National de la Recherche Scientifique
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  • : FunderObservatoire de Paris, Université de Recherche Paris Sciences et Lettres
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  • : FunderIstituto Nazionale di Fisica Nucleare Sezione di Padova
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  • : FunderFundación General CSIC
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  • : FunderSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
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  • : FunderUK Space Agency
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  • : FunderScottish Universities Physics Alliance
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  • : FunderUniversity of Glasgow
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  • : FunderUniversity of Birmingham
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  • : FunderImperial College London
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  • : FunderNational Aeronautics and Space Administration
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  • : FunderSwiss Space Office
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  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)