[OPTICAL REVIEW Vol. 14, No. 3 (2007) 159-160]
© 2007 The Optical Society of Japan

Performance of Software-Based Solar Adaptive Optics System

Noriaki MIURA*, Yuuki NOTO, Shuusuke KATO, Susumu KUWAMURA, Naoshi BABA1, Yoichirou HANAOKA2, Satoru UENO3, and Reizaburou KITAI3

Department of Computer Sciences, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
1Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
2National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
3Hida Observatory, Graduate School of Science, Kyoto University, Kamitakara, Takayama, Gifu 506-1314, Japan

(Received October 19, 2006; Accepted February 13, 2007)

This paper reports the performance of our modified adaptive optics system for solar observations. This system operates at a frame rate of about 400 Hz and has the closed-loop cutoff frequency at 105 Hz. The results of the laboratory experiments show that this system compensates for a temporal wavefront-variation of less than 99 Hz and improves the Strehl ratio by a factor of five.

Key words: adaptive optics, solar observation

*E-mail address: miura@cs.kitami-it.ac.jp