Portal de Periódicos da CAPES

Mirror actuation design for the interferometer control of the KAGRA gravitational wave telescope

2017; IOP Publishing; Volume: 34; Issue: 22 Linguagem: Inglês

10.1088/1361-6382/aa90e3

1361-6382

Yuta Michimura, Tomofumi Shimoda, Takahiro Miyamoto, A. Shoda, K. Okutomi, Yoshinori Fujii, Hiroki Tanaka, M. A. Barton, Ryutaro Takahashi, Y. Aso, T. Akutsu, Masaki Ando, Yutaro Enomoto, R. Flaminio, K. Hayama, Eiichi Hirose, Yuki Inoue, T. Kajita, Masahiro Kamiizumi, Seiji Kawamura, K. Kokeyama, K. Komori, Rahul Kumar, O. Miyakawa, Koji Nagano, Masayuki Nakano, N. Ohishi, Ching Pin Ooi, F. E. Peña Arellano, Yoshio Saito, K. Shimode, K. Somiya, H. Takeda, Takayuki Tomaru, Takashi Uchiyama, T. Ushiba, Kazuhiro Yamamoto, T. Yokozawa, Hirotaka Yuzurihara,

Magnetic confinement fusion research

KAGRA is a 3-km cryogenic interferometric gravitational wave telescope located at an underground site in Japan. In order to achieve its target sensitivity, the relative positions of the mirrors of the interferometer must be finely adjusted with attached actuators. We have developed a model to simulate the length control loops of the KAGRA interferometer with realistic suspension responses and various noises for mirror actuation. Using our model, we have designed the actuation parameters to have sufficient force range to acquire lock as well as to control all the length degrees of freedom without introducing excess noise.