An arm length stabilization system for KAGRA and future gravitational-wave detectors

  title={An arm length stabilization system for KAGRA and future gravitational-wave detectors},
  author={Tomotada Akutsu and Masaki Ando and Koji Arai and Yasuo Arai and Sakae Araki and Akito Araya and Naoki Aritomi and Yoichi Aso and S Bae and Y. Bae and Luca Baiotti and R Bajpai and Mark Andrew Barton and Kipp C. Cannon and E. Capocasa and Man Leong Chan and C. Chen and K. Chen and Y. R. Chen and Hyoungseok Chu and Y-K. Chu and Kohei Doi and Satoshi Eguchi and Yutaro Enomoto and R. Flaminio and Yoshinori Fujii and M. Fukunaga and M. Fukushima and Guiguo Ge and A. Hagiwara and Sadakazu Haino and Kunihiko Hasegawa and Hideaki Hayakawa and Kazuhiro Hayama and Yoshiaki Himemoto and Yuta Hiranuma and Naoatsu Hirata and Eiichi Hirose and Zhang Hong and B-H. Hsieh and G-Z. Huang and P. Huang and Y. Huang and Bungo Ikenoue and Suyanto Imam and Kohei Inayoshi and Yuki Inoue and Kunihito Ioka and Yousuke Itoh and Keisuke Izumi and K Jung and Piljong Jung and Takaaki Kajita and Masahiro Kamiizumi and S. Kanbara and N Kanda and G. Kang and Kyohei Kawaguchi and Nobuyuki Kawai and T. Kawasaki and C. Kim and J. C. Kim and W. S. Kim and Y.-M. Kim and Nobuhiro Kimura and Naoki Kita and Hideaki Kitazawa and Yasufumi Kojima and Keiko Kokeyama and Kentaro Komori and Albert K. H. Kong and Kei Kotake and C. Kozakai and Ryo Kozu and R. Kumar and Jun’ya Kume and C. Kuo and H-S. Kuo and Sachiko Kuroyanagi and K. Kusayanagi and K. Kwak and H. K. Lee and H. W. Lee and Ray-Kuang Lee and Matteo Leonardi and L. C.-C. Lin and C.Y. Lin and F-L. Lin and G. C. Liu and L. W. Luo and Manuel Marchi{\`o} and Yuta Michimura and Norikatsu Mio and Osamu Miyakawa and Akinobu Miyamoto and Yuki Miyazaki and Kouseki Miyo and Shinji Miyoki and Soichiro Morisaki and Yuji Moriwaki and Mitsuru Musha and Koji Nagano and Shigeo Nagano and K Nakamura and Hiroyuki Nakano and Masaya Nakano and Rika Nakashima and Tatsuya Narikawa and Rumi Negishi and Wei-Tou Ni and Atsushi J. Nishizawa and Yoshiyuki Obuchi and W. Ogaki and J J Oh and S. H. Oh and Masatake Ohashi and Naoko Ohishi and Masashi Ohkawa and Noriaki Ohmae and Koki Okutomi and Ken-ichi Oohara and Ching Pin Ooi and Shoichi Oshino and K. Pan and Hao Pang and J. Park and Fabi{\'a}n Erasmo Pe{\~n}a Arellano and Innocenzo M. Pinto and Norichika Sago and S. Saito and Y. Saito and Kazumitsu Sakai and Y. Sakai and Yuuji Sakuno and S. Sato and T. Sato and T. Sawada and Takanori Sekiguchi and Yuichiro Sekiguchi and Shota Shibagaki and R. Shimizu and T. Shimoda and K. Shimode and Hisa-aki Shinkai and T. Shishido and Ayaka Shoda and Kentaro Somiya and E J Son and Hajime Sotani and R. Sugimoto and T. Suzuki and Hideyuki Tagoshi and H. Takahashi and Ryutaro Takahashi and Akiteru Takamori and Satoru Takano and Hiroki Takeda and Masanori Takeda and H. Tanaka and K. H. Tanaka and T. Tanaka and S Tanioka and E. N. Tapia San Martin and Daisuke Tatsumi and Souichi Telada and Takayuki Tomaru and Y. Tomigami and Tomonobu Tomura and Flavio Travasso and Lucia Trozzo and T. T. L. Tsang and Kimio Tsubono and Satoshi Tsuchida and Toshihiro Tsuzuki and Darkhan Tuyenbayev and Nami Uchikata and Takashi Uchiyama and Akira Ueda and Tomoyuki Uehara and Koh Ueno and Gen Ueshima and Fumihiro Uraguchi and Takafumi Ushiba and Maurice H. P. M. van Putten and Helios Vocca and J. Z. Wang and C. Wu and H. Wu and S. Wu and W-R. Xu and T. Yamada and K. Yamamoto and T. Yamamoto and K. Yokogawa and Jun’ichi Yokoyama and Takaaki Yokozawa and Takashi Yoshioka and Hirotaka Yuzurihara and Simon Zeidler and Y. Zhao and Zhigang Zhu},
  journal={Classical and Quantum Gravity},
Modern ground-based gravitational wave (GW) detectors require a complex interferometer configuration with multiple coupled optical cavities. Since achieving the resonances of the arm cavities is the most challenging among the lock acquisition processes, the scheme called arm length stabilization (ALS) had been employed for lock acquisition of the arm cavities. We designed a new type of the ALS, which is compatible with the interferometers having long arms like the next generation GW detectors… 

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