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Proceedings Paper

Computer Simulation Of A Large Adaptive Optical System
Author(s): Virendra N. Mahajan; Jacques Govignon
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Paper Abstract

This paper describes a method for evaluating the optical performance of optical systems consisting of large, flexible, actively controlled mirrors in the presence of thermal and dynamic disturbances. The computer simulation described here is divided into four major blocks: optics, thermal, structures, and dynamics. The control aspects are included in the various models used in each block. The output of the simulation is a dynamic point-spread function from which real-time or average quantities such as the line-of-sight error, Strehl ratio, and power in a certain area are calculated. As an example, a two-mirror system that expands a high-power collimated beam and focuses it on a distant plane is considered. The effects of heating of the mirrors are simulated and results on the point-spread function and associated quantities are presented.

Paper Details

Date Published: 3 May 1979
PDF: 13 pages
Proc. SPIE 0172, Instrumentation in Astronomy III, (3 May 1979); doi: 10.1117/12.957115
Show Author Affiliations
Virendra N. Mahajan, The Charles Stark Draper Laboratory, Inc. (United States)
Jacques Govignon, The Charles Stark Draper Laboratory, Inc. (United States)

Published in SPIE Proceedings Vol. 0172:
Instrumentation in Astronomy III
David L. Crawford, Editor(s)

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