Speaker
Ryosuke Sugimoto
(University of Toyama)
Description
Gravitational wave telescope KAGRA is a complex system composed of multiple resonators and interferometers, and they should be controlled at same time.
Otherwise, operation of full configuration of KAGRA can never be started.
KAGRA adopts green lasers besides main infrared laser to realize controlled interferometer, lock acquisition. This system with green laser is called Arm Length Stabilization (ALS).
We already installed ALS system for one arm by last year. And, successfully keep resonance arm cavity by hand-over from ALS to main laser.
I report latest updates in KAGRA site.
Primary author
Ryosuke Sugimoto
(University of Toyama)
Co-authors
Mr
Kazuya Yokogawa
(University of Toyama)
Dr
Kohei Doi
(University of Toyama)
Mr
Hideaki Kitazawa
(University of Toyama)
Dr
Kazufusa Matushima
(University of Toyama)
Prof.
Yoshiki Moriwaki
(University of Toyama)
Prof.
Kazuhiro Yamamoto
Dr
Kiwamu Izumi
(Institute of Space and Astronautical Science)
Dr
Yuta Michimura
(University of Tokyo)
Mr
Youtaro Enomoto
(University of Tokyo)
Prof.
Youichi Aso
(National Astronomical Observatory of Japan)
Dr
Daisuke Tatsumi
(National Astronomical Observatory of Japan)
Dr
Koji Arai
(California Institute of Technology)
