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Proceedings Paper

Low-voltage SELECT deformable mirrors
Author(s): Mark A. Ealey
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Paper Abstract

The low voltage SELECT deformable mirror described herein provides sub-nanometer control of the optical wavefront and represents the culmination of 10 years of development. Due to the maturity of the PMN electrostrictive actuator technology, the mirror operating voltage has decreased from 3000 volts to 100 volts, the hysteresis has been reduced from near 20% to less than 1%, and the response uniformity is better than 3% over the entire actuator population. But more importantly, the deformable mirrors built today are unparalleled in terms of performance and reliability, even after millions of operational cycles. This paper will summarizes the actuator process developments and discuss the design features and measured performance of the low voltage SELECT deformable mirror family. In fact as the results will show, the SELECT DM's are not only good deformable mirrors, but are also among the most precise optics ever made, especially when operated under active control.

Paper Details

Date Published: 25 August 1993
PDF: 12 pages
Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); doi: 10.1117/12.152655
Show Author Affiliations
Mark A. Ealey, Litton Itek Optical Systems (United States)


Published in SPIE Proceedings Vol. 1920:
Active and Adaptive Optical Components and Systems II
Mark A. Ealey, Editor(s)

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