Application of Photon Calibrator in Hardware Injection Test for Kagra Gravitational Wave Detector
Yu-Kuang Chu1*, Sadakazu Haino2, Bin-Hua Hsieh3, Yuki Inoue2,4, Nobuyuki Kanda5, Wo-Lung Lee1, Takaharu Shishido6, Takayuki Tomoru4,6, Satoshi Tsuchida5, Takahiro Yamamoto3, Takaaki Yokozawa5
1Department of Physics, National Taiwan Normal University, Taipei, Taiwan
2Institute of Physics, Academia Sinica, Taipei, Taiwan
3Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa, Chiba, Japan
4High Energy Accelerator Research Organization, Tsukuba, Ibaraki, Japan
5Graduate School of Science, Osaka City University, Osaka, Japan
6SOKENDAI (The Graduate University for Advanced Studies), Tsukuba, Ibaraki, Japan
* Presenter:Yu-Kuang Chu,
Nowadays, many gravitational wave events has been detected by ground-based laser interferometers. To achieve these result, properly calibrating these detectors thereby reconstructing the gravitational wave strain data is an indispensable work. Photon calibrator (Pcal) is a device providing fiducial length reference by exerting the radiation pressure of an auxiliary laser on the test mass mirror in the interferometer. Besides, Pcal can be used as an actuator for injecting artifact test signal into the interferometer to investigate its response to the external sources. In order to get better performance in high frequency regime, we are developing a new Pcal with high power (20 Watt) laser for our Kamioka Gravitational wave detector (KAGRA). After finishing the development and performance test in KEK, our Pcal will be installed in KAGRA site in May 2018. In this talk, I am going to discuss the performance of our new Pcal in the hardware injection test.

Keywords: Gravitational Wave Detector, KAGRA, Calibration