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Input optics systems of the KAGRA detector during O3GK
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Input optics systems of the KAGRA detector during O3GK

T. Akutsu, M. Ando, K. Arai, Y. Arai, S. Araki, A. Araya, N. Aritomi, H. Asada, Y. Aso, S. Bae, …
Progress of Theoretical and Experimental Physics, 卷.2023(2), 023F01
02/2023
DOI: https://doi.org/10.1093/ptep/ptac166
Web of Science ID: WOS:000981822600001

摘要

Physics and Astronomy (all)
KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25 to March 10, 2020, and its first joint observation with the GEO 600 detector from April 7 to April 21, 2020 (O3GK). This study presents an overview of the input optics systems of the KAGRA detector, which consist of various optical systems, such as a laser source, its intensity and frequency stabilization systems, modulators, a Faraday isolator, mode-matching telescopes, and a high-power beam dump. These optics were successfully delivered to the KAGRA interferometer and operated stably during the observations. The laser frequency noise was observed to limit the detector sensitivity above a few kilohertz, whereas the laser intensity did not significantly limit the detector sensitivity.

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引用書目主題
5 Physics
5.9 Particles & Fields
5.9.746 Gravitational Waves
Web Of Science研究領域
Physics, Multidisciplinary
Physics, Particles & Fields
ESI研究領域
Physics

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