A 134-control-channel adaptive-optics system consisting of a microelectromechanical mirror array (μ -mirror), a wave-front tilt-control mirror, and a very large scale integration controller utilizing a stochastic gradient-descent optimization of a performance metric is presented. A maximum adaptation rate of ~11, 000 iterations/s was achieved. The system was used to demonstrate real-time compensation for dynamic phase distortions from a laboratory-generated turbulence simulator in a laser-focusing experiment.
© 2002 Optical Society of America
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.3990) Optical devices : Micro-optical devices
Thomas Weyrauch and Mikhail A. Vorontsov, "Dynamic wave-front distortion compensation with a 134-control-channel submillisecond adaptive system," Opt. Lett. 27, 751-753 (2002)