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Optical Engineering

Design Of A Thermal Blooming Cell For Use In Evaluating Adaptive Optics
Author(s): Bruce Pierce; James Harvey; Andrew Piekutowski; William MacInnis
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Paper Abstract

An instrumentation system has been designed for the evaluation of thermal blooming compensation. The purpose is to investigate the maximization of 10.6 um CO2 laser radiation in the target plane through maximization of the return 3-5 um radiation from the laser-induced "hot spot" by using a pinhole sensor and a slow dither algorithm. The adaptive optical component to be used in the evaluation is a three-actuator modal deformable mirror supplied to the USAF by Perkin-Elmer Corporation. This paper deals primarily with the design of a thermal blooming cell that will be used for simulating atmospheric path lengths of several kilometers within a laboratory setup where the total path length is limited to a few meters. The theory required to perform the scaling is currently available in the literature. We present it in a format designed to aid the optical engineer, whose primary concern is the evaluation of an adaptive optical system for thermal blooming compensation. The interplay of the many parameters that may be varied is illustrated in graphical form to facilitate choices. As an example, we included our design for a one-meter cell to be incorporated in the slow dither experiment.

Paper Details

Date Published: 1 June 1980
PDF: 6 pages
Opt. Eng. 19(3) 193381 doi: 10.1117/12.7972523
Published in: Optical Engineering Volume 19, Issue 3
Show Author Affiliations
Bruce Pierce, University of Dayton (United States)
James Harvey, University of Dayton (United States)
Andrew Piekutowski, University of Dayton (United States)
William MacInnis, Air Force Weapons Laboratory/ARLO (United States)

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