Reducing scattered light in LIGO's third observing run

Research output: Contribution to journal › Article › Research › peer review

Authors

  • The LIGO Scientific Collaboration
  • N. Bode
  • P. Booker
  • J. Liu
  • Fabian Meylahn

Research Organisations

External Research Organisations

  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
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Details

Original languageEnglish
Article number025016
JournalClassical and quantum gravity
Volume38
Issue number2
Early online date14 Dec 2020
Publication statusPublished - 22 Jan 2021

Abstract

Noise due to scattered light has been a frequent disturbance in the advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO and Virgo's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.

Keywords

    scattered light, LIGO, ground motion, interferometry

ASJC Scopus subject areas

Cite this

Reducing scattered light in LIGO's third observing run. / The LIGO Scientific Collaboration; Bode, N.; Booker, P. et al.
In: Classical and quantum gravity, Vol. 38, No. 2, 025016, 22.01.2021.

Research output: Contribution to journal › Article › Research › peer review

The LIGO Scientific Collaboration, Bode, N, Booker, P, Liu, J & Meylahn, F 2021, 'Reducing scattered light in LIGO's third observing run', Classical and quantum gravity, vol. 38, no. 2, 025016. https://doi.org/10.1088/1361-6382/abc906
The LIGO Scientific Collaboration, Bode, N., Booker, P., Liu, J., & Meylahn, F. (2021). Reducing scattered light in LIGO's third observing run. Classical and quantum gravity, 38(2), Article 025016. https://doi.org/10.1088/1361-6382/abc906
The LIGO Scientific Collaboration, Bode N, Booker P, Liu J, Meylahn F. Reducing scattered light in LIGO's third observing run. Classical and quantum gravity. 2021 Jan 22;38(2):025016. Epub 2020 Dec 14. doi: 10.1088/1361-6382/abc906
The LIGO Scientific Collaboration ; Bode, N. ; Booker, P. et al. / Reducing scattered light in LIGO's third observing run. In: Classical and quantum gravity. 2021 ; Vol. 38, No. 2.
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abstract = "Noise due to scattered light has been a frequent disturbance in the advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO and Virgo's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.",
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T1 - Reducing scattered light in LIGO's third observing run

AU - The LIGO Scientific Collaboration

AU - Soni, S.

AU - Austin, C.

AU - Effler, A.

AU - Schofield, R. M. S.

AU - Gonzalez, G.

AU - Frolov, V. V.

AU - Driggers, J. C.

AU - Pele, A.

AU - Urban, A. L.

AU - Valdes, G.

AU - Abbott, R.

AU - Adams, C.

AU - Adhikari, R. X.

AU - Ananyeva, A.

AU - Appert, S.

AU - Arai, K.

AU - Areeda, J. S.

AU - Asali, Y.

AU - Aston, S. M.

AU - Baer, A. M.

AU - Ball, M.

AU - Ballmer, S. W.

AU - Banagiri, S.

AU - Barker, D.

AU - Barsotti, L.

AU - Bartlett, J.

AU - Berger, B. K.

AU - Betzwieser, J.

AU - Bhattacharjee, D.

AU - Billingsley, G.

AU - Biscans, S.

AU - Blair, C. D.

AU - Blair, R. M.

AU - Bode, N.

AU - Booker, P.

AU - Bork, R.

AU - Bramley, A.

AU - Brooks, A. F.

AU - Buikema, A.

AU - Cahillane, C.

AU - Cannon, K. C.

AU - Ciobanu, A. A.

AU - Clara, F.

AU - Cooper, S. J.

AU - Corley, K. R.

AU - Countryman, S. T.

AU - Covas, P. B.

AU - Willke, B.

AU - Liu, J.

AU - Meylahn, Fabian

PY - 2021/1/22

Y1 - 2021/1/22

N2 - Noise due to scattered light has been a frequent disturbance in the advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO and Virgo's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.

AB - Noise due to scattered light has been a frequent disturbance in the advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO and Virgo's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.

KW - scattered light

KW - LIGO

KW - ground motion

KW - interferometry

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U2 - 10.1088/1361-6382/abc906

DO - 10.1088/1361-6382/abc906

M3 - Article

VL - 38

JO - Classical and quantum gravity

JF - Classical and quantum gravity

SN - 0264-9381

IS - 2

M1 - 025016

ER -