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,Y. Bae,L. Baiotti,R. Bajpai, M. A. Barton,K. Cannon,Z. Cao,E. Capocasa,M. Chan,C. Chen,K. Chen,Y. Chen, C- Chiang,H. Chu,Y-K Chu,S. Eguchi,Y. Enomoto,R. Flaminio,Y. Fujii, Y. Fujikawa, M. Fukunaga,M. Fukushima, T. Furuhata,D. Gao,G-G Ge,S. Ha,A. Hagiwara,S. Haino,W-B Han,K. Hasegawa,K. Hattori,H. Hayakawa,K. Hayama,Y. Himemoto, Y. Hiranuma, N. Hirata, E. Hirose,Z. Hong,B-H Hsieh,G-Z Huang,H-Y Huang, P. Huang,Y-C Huang,Y-J Huang,D. C. Y. Hui,S. Ide, B. Ikenoue,S. Imam,K. Inayoshi,Y. Inoue,K. Ioka,K. Ito, Y. Itoh,K. Izumi,C. Jeon,H-B Jin,K. Jung,P. Jung, K. Kaihotsu, T. Kajita, M. Kakizaki, M. Kamiizumi, S. Kanbara,N. Kanda, G. Kang, Y. Kataoka,K. Kawaguchi,N. Kawai, T. Kawasaki,C. Kim,J. Kim,J. C. Kim,W. S. Kim,Y-M Kim,N. Kimura,N. Kita,H. Kitazawa,Y. Kojima, K. Kokeyama,K. Komori,A. K. H. Kong, K. Kotake, C. Kozakai, R. Kozu,R. Kumar, J. Kume,C. Kuo,H-S Kuo, Y. Kuromiya, S. Kuroyanagi, K. Kusayanagi,K. Kwak,H. K. Lee,H. W. Lee,R. Lee,M. Leonardi, K. L. Li,L. C-C Lin,C-Y Lin,F-K Lin,F-L Lin,H. L. Lin,G. C. Liu,L-W Luo, E. Majorana, M. Marchio,Y. Michimura,N. Mio,O. Miyakawa, A. Miyamoto,Y. Miyazaki, K. Miyo, S. Miyoki,Y. Mori, S. Morisaki,Y. Moriwaki,K. Nagano, S. Nagano,K. Nakamura,H. Nakano,M. Nakano, R. Nakashima,Y. Nakayama, T. Narikawa, L. Naticchioni,R. Negishi,L. Nguyen Quynh,W-T Ni,A. Nishizawa, S. Nozaki, Y. Obuchi, W. Ogaki,J. J. Oh,K. Oh, S. H. Oh, M. Ohashi, N. Ohishi, M. Ohkawa,H. Ohta, Y. Okutani, K. Okutomi, K. Oohara,C. Ooi, S. Oshino, S. Otabe,K-C Pan, H. Pang,A. Parisi,J. Park,F. E. Pena Arellano,I Pinto, N. Sago,S. Saito,Y. Saito,K. Sakai,Y. Sakai, Y. Sakuno,S. Sato,T. Sato,T. Sawada,T. Sekiguchi,Y. Sekiguchi,L. Shao, S. Shibagaki,R. Shimizu,T. Shimoda, K. Shimode,H. Shinkai,T. Shishido,A. Shoda,K. Somiya,E. J. Son, H. Sotani,R. Sugimoto,J. Suresh,T. Suzuki,T. Suzuki, H. Tagoshi,H. Takahashi,R. Takahashi, A. Takamori, S. Takano,H. Takeda, M. Takeda,H. Tanaka,K. Tanaka,K. Tanaka,T. Tanaka,T. Tanaka, S. Tanioka,E. N. Tapia San Martin, S. Telada, T. Tomaru, Y. Tomigami,T. Tomura,F. Travasso,L. Trozzo,T. Tsang,J-S Tsao,K. Tsubono, S. Tsuchida,T. Tsutsui,T. Tsuzuki, D. Tuyenbayev, N. Uchikata, T. Uchiyama,A. Ueda,T. Uehara,K. Ueno, G. Ueshima, F. Uraguchi, T. Ushiba,M. H. P. M. Putten, H. Vocca,J. Wang, T. Washimi,C. Wu,H. Wu,S. Wu,W-R Xu,T. Yamada, K. Yamamoto, K. Yamamoto, T. Yamamoto,K. Yamashita,R. Yamazaki,Y. Yang,K. Yano, K. Yokogawa, J. Yokoyama, T. Yokozawa,T. Yoshioka, H. Yuzurihara,S. Zeidler,M. Zhan, H. Zhang,Y. Zhao,Z-H Zhu,R. Goetz, M. Heintze,J. Liu, C. Mueller, R. L. Savage, D. B. Tanner

arxiv（2023）

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摘要

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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kagra detector,input optics systems

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