Input optics systems of the KAGRA detector during O3GK

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. ORCID: https://orcid.org/0000-0002-2896-1992, 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., Goetz, R., Heintze, M., Liu, J., Müller, C., Savage, R. L. and Tanner, D. B. 2023. Input optics systems of the KAGRA detector during O3GK. Progress of Theoretical and Experimental Physics 2023 (2) , 023F01. 10.1093/ptep/ptac166

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Oxford University Press
ISSN:	2050-3911
Date of First Compliant Deposit:	29 March 2023
Date of Acceptance:	7 December 2022
Last Modified:	18 May 2023 11:59
URI:	https://orca.cardiff.ac.uk/id/eprint/158170

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