Reducing control noise in gravitational wave detectors with interferometric local damping of suspended optics-Reference-Cited by-同舟云学术

Reducing control noise in gravitational wave detectors with interferometric local damping of suspended optics

Published:2023-05-01 Issue:5 Volume:94 Page:
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:

Author:

van Dongen J.¹²^ORCID,Prokhorov L.³^ORCID,Cooper S. J.³^ORCID,Barton M. A.⁴^ORCID,Bonilla E.⁵^ORCID,Dooley K. L.⁶^ORCID,Driggers J. C.⁷^ORCID,Effler A.⁸^ORCID,Holland N. A.¹²^ORCID,Huddart A.⁹^ORCID,Kasprzack M.¹⁰^ORCID,Kissel J. S.⁷^ORCID,Lantz B.⁵^ORCID,Mitchell A. L.¹²^ORCID,O’Dell J.⁹^ORCID,Pele A.¹⁰^ORCID,Robertson C.⁹^ORCID,Mow-Lowry C. M.¹²^ORCID

Affiliation:

1. Dutch National Institute for Subatomic Physics, Nikhef 1 , 1098 XG Amsterdam, Netherlands

2. Vrije Universiteit Amsterdam 2 , 1081 HV Amsterdam, Netherlands

3. School of Physics and Astronomy and Institute for Gravitational Wave Astronomy, University of Birmingham 3 , Birmingham B15 2TT, United Kingdom

4. Institute for Gravitational Research, University of Glasgow 4 , Glasgow G12 8QQ, United Kingdom

5. Stanford University 5 , Stanford, California 94305, USA

6. Cardiff University 6 , Cardiff CF24 3AA, United Kingdom

7. LIGO Hanford Observatory 7 , Richland, Washington 99352, USA

8. LIGO Livingston Observatory 8 , Livingston, Louisiana 70754, USA

9. STFC Rutherford Appleton Laboratory 9 , Chilton, Didcot OX11 OQX, United Kingdom

10. LIGO, California Institute of Technology 10 , Pasadena, California 91125, USA

Abstract

Control noise is a limiting factor in the low-frequency performance of the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO). In this paper, we model the effects of using new sensors called Homodyne Quadrature Interferometers (HoQIs) to control the suspension resonances. We show that if we were to use HoQIs, instead of the standard shadow sensors, we could suppress resonance peaks up to tenfold more while simultaneously reducing the noise injected by the damping system. Through a cascade of effects, this will reduce the resonant cross-coupling of the suspensions, allow for improved stability for feed-forward control, and result in improved sensitivity of the detectors in the 10–20 Hz band. This analysis shows that improved local sensors, such as HoQIs, should be used in current and future detectors to improve low-frequency performance.

Funder

Science and Technology Facilities Council

European Research Council

National Science Foundation

Leverhulme Trust

Publisher

AIP Publishing

Subject

Instrumentation

Link

https://pubs.aip.org/aip/rsi/article-pdf/doi/10.1063/5.0144865/17796646/054501_1_5.0144865.pdf

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