Closed-Loop Active Optical System Control

Thomas E. Sparks

doi:10.1117/12.958818

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8 August 1980 Closed-Loop Active Optical System Control

Thomas E. Sparks

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Proceedings Volume 0230, Minicomputers and Microprocessors in Optical Systems; (1980) https://doi.org/10.1117/12.958818
Event: 1980 Technical Symposium East, 1980, Washington, D.C., United States

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.

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Thomas E. Sparks "Closed-Loop Active Optical System Control", Proc. SPIE 0230, Minicomputers and Microprocessors in Optical Systems, (8 August 1980); https://doi.org/10.1117/12.958818

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