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Proceedings Paper

Closed-Loop Active Optical System Control
Author(s): Thomas E. Sparks
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Paper Abstract

The need for deformable mirror systems, large and mall, has generated the requirement for methods of control. A closed-loop control algorithm contains the means to measure an optical quality criterion, such as the root-mean-squared (rms) wavefront error, compute the appropriate correction signals, and apply those signals to the system. By looping over these steps, a desired optical system quality may be attained and maintained in a changing environment. This paper describes a digital system designed to control active optical systems in a stable environment, such as an in-process test, where a loop time measured in minutes is adequate. A discussion on the host minicomputer as well as the measurement, computation, and control aspects of the system is presented.

Paper Details

Date Published: 8 August 1980
PDF: 8 pages
Proc. SPIE 0230, Minicomputers and Microprocessors in Optical Systems, (8 August 1980); doi: 10.1117/12.958818
Show Author Affiliations
Thomas E. Sparks, Itek Corporation (United States)

Published in SPIE Proceedings Vol. 0230:
Minicomputers and Microprocessors in Optical Systems
Chris L. Koliopoulos; Frederic M. Zweibaum, Editor(s)

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