We have designed and built an electrostatically deformable membrane mirror with simple bias and driver electronics to evaluate its suitability for a curvature-sensing adaptive optics system. It has a 100-mm-diameter aluminized nitrocellulose membrane, with 31 actuators arranged concentrically. The unit operates at atmospheric pressure with a high bias voltage applied to the membrane. The high-voltage electronics are contained within the mirror housing for safety reasons. An entrance window reduces the effects of air-coupled vibration. Details of the device and design rationale are presented. With a proper bias, the unit can provide low-order (including tip–tilt) wave-front correction.
© 1998 Optical Society of America
Greg S. Burley, Jim R. Stilburn, and Gordon A. H. Walker, "Membrane Mirror and Bias Electronics," Appl. Opt. 37, 4649-4655 (1998)