Recent development in real-time control system of Subaru adaptive optics including laser guide star mode

Masayuki Hattori; Stephen Colley; Vincent Garrel; Sebastian Egner; Taras Golota; Olivier Guyon; Meguro Ito; Yosuke Minowa; Shin Oya; Yoshihiko Saito; Makoto Watanabe; Yutaka Hayano; Hideki Takami; Masanori Iye

doi:10.1117/12.857710

28 July 2010 Recent development in real-time control system of Subaru adaptive optics including laser guide star mode

Masayuki Hattori, Stephen Colley, Vincent Garrel, Sebastian Egner, Taras Golota, Olivier Guyon, Meguro Ito, Yosuke Minowa, Shin Oya, Yoshihiko Saito, Makoto Watanabe, Yutaka Hayano, Hideki Takami, Masanori Iye

Author Affiliations +

Proceedings Volume 7736, Adaptive Optics Systems II; 77364M (2010) https://doi.org/10.1117/12.857710
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We report recent development in real time control system of Subaru adaptive optics system. The main topic is modification of the real time control system for laser guide star operation. The primary change is appending lower order wave-front sensor. And also, an auxiliary tip-tilt and focus control are appended before higher order waver-front sensor to absorb the perturbation of the laser beam and height of sodium layer. Our implementations using the control gain matrix are introduced thoroughly from the basis of the system design and down to the details. Also, other new function and prospects in the near future will be presented for the cascaded average monitor and the time domain over sampling.

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Masayuki Hattori, Stephen Colley, Vincent Garrel, Sebastian Egner, Taras Golota, Olivier Guyon, Meguro Ito, Yosuke Minowa, Shin Oya, Yoshihiko Saito, Makoto Watanabe, Yutaka Hayano, Hideki Takami, and Masanori Iye "Recent development in real-time control system of Subaru adaptive optics including laser guide star mode", Proc. SPIE 7736, Adaptive Optics Systems II, 77364M (28 July 2010); https://doi.org/10.1117/12.857710

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