Input optics systems of the KAGRA detector during O3GK. (9th December 2022)

• Record Type: Journal Article
• Authors: Akutsu, T; Ando, M; Arai, K; Arai, Y; Araki, S; Araya, A; Aritomi, N; Asada, H; Aso, Y; Bae, S; Bae, Y; Baiotti, L; Bajpai, R; Barton, M A; Cannon, K; Cao, Z; Capocasa, E; Chan, M; Chen, C; Chen, K; Chen, Y; Chiang, C-I; Chu, H; Chu, Y-K; Eguchi, S; Enomoto, Y; Flaminio, R; Fujii, Y; Fujikawa, Y; Fukunaga, M; Fukushima, M; Furuhata, T; Gao, D; Ge, G-G; Ha, S; Hagiwara, A; Haino, S; Han, W-B; Hasegawa, K; Hattori, K; Hayakawa, H; Hayama, K; Himemoto, Y; Hiranuma, Y; Hirata, N; Hirose, E; Hong, Z; Hsieh, B-H; Huang, G-Z; Huang, H-Y; Huang, P; Huang, Y-C; Huang, Y-J; Hui, D C Y; Ide, S; Ikenoue, B; Imam, S; Inayoshi, K; Inoue, Y; Ioka, K; Ito, K; Itoh, Y; Izumi, K; Jeon, C; Jin, H-B; Jung, K; Jung, P; Kaihotsu, K; Kajita, T; Kakizaki, M; Kamiizumi, M; Kanbara, S; Kanda, N; Kang, G; Kataoka, Y; Kawaguchi, K; Kawai, N; Kawasaki, T; Kim, C; Kim, J; Kim, J C; Kim, W S; Kim, Y-M; Kimura, N; Kita, N; Kitazawa, H; Kojima, Y; Kokeyama, K; Komori, K; Kong, A K H; Kotake, K; Kozakai, C; Kozu, R; Kumar, R; Kume, J; Kuo, C; Kuo, H-S; Kuromiya, Y; Kuroyanagi, S; Kusayanagi, K; Kwak, K; Lee, H K; Lee, H W; Lee, R; Leonardi, M; Li, K L; Lin, L C-C; Lin, C-Y; Lin, F-K; Lin, F-L; Lin, H L; Liu, G C; Luo, L-W; Majorana, E; Marchio, M; Michimura, Y; Mio, N; Miyakawa, O; Miyamoto, A; Miyazaki, Y; Miyo, K; Miyoki, S; Mori, Y; Morisaki, S; Moriwaki, Y; Nagano, K; Nagano, S; Nakamura, K; Nakano, H; Nakano, M; Nakashima, R; Nakayama, Y; Narikawa, T; Naticchioni, L; Negishi, R; Quynh, L Nguyen; Ni, W-T; Nishizawa, A; Nozaki, S; Obuchi, Y; Ogaki, W; Oh, J J; Oh, K; Oh, S H; Ohashi, M; Ohishi, N; Ohkawa, M; Ohta, H; Okutani, Y; Okutomi, K; Oohara, K; Ooi, C; Oshino, S; Otabe, S; Pan, K-C; Pang, H; Parisi, A; Park, J; Arellano, F E Peña; Pinto, I; Sago, N; Saito, S; Saito, Y; Sakai, K; Sakai, Y; Sakuno, Y; Sato, S; Sato, T; Sawada, T; Sekiguchi, T; Sekiguchi, Y; Shao, L; Shibagaki, S; Shimizu, R; Shimoda, T; Shimode, K; Shinkai, H; Shishido, T; Shoda, A; Somiya, K; Son, E J; Sotani, H; Sugimoto, R; Suresh, J; Suzuki, T; Suzuki, T; Tagoshi, H; Takahashi, H; Takahashi, R; Takamori, A; Takano, S; Takeda, H; Takeda, M; Tanaka, H; Tanaka, K; Tanaka, K; Tanaka, T; Tanaka, T; Tanioka, S; Tapia San Martín, E N; Telada, S; Tomaru, T; Tomigami, Y; Tomura, T; Travasso, F; Trozzo, L; Tsang, T; Tsao, J-S; Tsubono, K; Tsuchida, S; Tsutsui, T; Tsuzuki, T; Tuyenbayev, D; Uchikata, N; Uchiyama, T; Ueda, A; Uehara, T; Ueno, K; Ueshima, G; Uraguchi, F; Ushiba, T; Putten, M H P M; Vocca, H; Wang, J; Washimi, T; Wu, C; Wu, H; Wu, S; Xu, W-R; Yamada, T; Yamamoto, K; Yamamoto, K; Yamamoto, T; Yamashita, K; Yamazaki, R; Yang, Y; Yano, K; Yokogawa, K; Yokoyama, J; Yokozawa, T; Yoshioka, T; Yuzurihara, H; Zeidler, S; Zhan, M; Zhang, H; Zhao, Y; Zhu, Z-H;
• Is Part Of: Progress of theoretical and experimental physics. Volume 2023:Number 2(2023)
• Publication Date: 2022-12-09
• Subjects: Physics -- Periodicals; Mathematical physics -- Periodicals; 530.05
• DOI: 10.1093/ptep/ptac166
• Languages: English
• ISSNs: 2050-3911

Abstract

Abstract: 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.