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IOP Publishing, Classical and Quantum Gravity, 11(39), p. 115011, 2022

DOI: 10.1088/1361-6382/ac6a9d

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Measurement of the stray light in the Advanced Virgo input mode cleaner cavity using an instrumented baffle

Journal article published in 2022 by O. Ballester ORCID, O. Blanch ORCID, L. Cardiel ORCID, M. Cavalli-Sforza ORCID, A. Chiummo ORCID, C. García ORCID, J. M. Illa ORCID, C. Karathanasis ORCID, M. Kolstein ORCID, M. Martínez ORCID, A. Menéndez-Vázquez ORCID, Ll M. Mir ORCID, J. Mundet ORCID, A. Romero-Rodríguez ORCID, D. Serrano and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Abstract A new instrumented baffle was installed in Spring 2021 at Virgo surrounding the suspended mirror in the input mode cleaner triangular cavity. It serves as a demonstrator of the technology designed to instrument the baffles in the main arms in the near future. We present, for the first time, results on the measured scattered light distribution inside the cavity as determined by the new device using data collected between May and July 2021, with Virgo in commissioning phase and operating with an input laser power in the cavity of 28.5 W. The sensitivity of the baffle is discussed and the data is compared to scattered light simulations.