Abstract

A new deformable mirror control system is developed. This system consists of a deformable mirror, a CCD camera, an image processor, a computer, and actuator drive power supplies. A genetic algorithm is adopted as a control algorithm to obtain an optimum surface profile of the deformable mirror. A circular cross-sectional Gaussian beam was transformed into a beam with a rectangular contour using this system. Although the transfer function of this system is complicated and unknown, this system can be used to obtain the optimum beam profile within the achievable limits of a deformable mirror.

© 1997 Optical Society of America

Laser beam intensity profile transformation with a fabricated mirror

Koshichi Nemoto, Takashi Fujii, Naohiko Goto, Hideo Takino, Teruki Kobayashi, Norio Shibata, Kazuya Yamamura, and Yuzo Mori
Appl. Opt. 36(3) 551-557 (1997)

Transformation of a laser beam intensity profile by a deformable mirror

Koshichi Nemoto, Takashi Fujii, Naohiko Goto, Takuya Nayuki, and Yoshi-kazu Kanai
Opt. Lett. 21(3) 168-170 (1996)

High-aspect-ratio line focus for an x-ray laser by a deformable mirror

Geun-Young Yoon, Takahisa Jitsuno, Yoshiaki Kato, and Masahiro Nakatsuka
Appl. Opt. 36(4) 847-852 (1997)

Adaptive control of a micromachined continuous-membrane deformable mirror for aberration compensation

Lijun Zhu, Pang-Chen Sun, Dirk-Uwe Bartsch, William R. Freeman, and Yeshaiahu Fainman
Appl. Opt. 38(1) 168-176 (1999)

Two-deformable-mirror concept for correcting scintillation effects in laser beam projection through the turbulent atmosphere

Michael C. Roggemann and David J. Lee
Appl. Opt. 37(21) 4577-4585 (1998)