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Proceedings Paper

Simulation and experimental results for a phase retrieval-based algorithm for far-field beam steering and shaping
Author(s): Michael C. Roggemann; Byron M. Welsh; Bradley R. Stone; Ting Ei Su
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Paper Abstract

Active laser-based electro-optical (EO) sensors on future aircraft and spacecraft will be used for a variety of missions and will be required to have a number of demanding technical characteristics. A key challenge to achieving these characteristics is the development of inexpensive, high degree of freedom optical wave front control devices, and the development of effective algorithms for controlling these devices. In this paper we present our research in the development of phase retrieval-based wave front control algorithms that can be used implemented with segmented liquid crystal-based wave front control devices. We have developed a wave front control algorithm that allows dynamic small-angle beam steering and shaping in the presence of an aberrating output window. Our approach is based on a phase retrieval algorithm to determine the optimal figure of a segmented wave front control device. Simulation and experimental results presented here show that this approach allows shaped far field patterns to be created and steered over small angles.

Paper Details

Date Published: 4 February 2002
PDF: 13 pages
Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); doi: 10.1117/12.454793
Show Author Affiliations
Michael C. Roggemann, Michigan Technological Univ. (United States)
Byron M. Welsh, Mission Research Corp. (United States)
Bradley R. Stone, Mission Research Corp. (United States)
Ting Ei Su, Michigan Technological Univ. (United States)

Published in SPIE Proceedings Vol. 4494:
Adaptive Optics Systems and Technology II
Robert K. Tyson; Domenico Bonaccini; Michael C. Roggemann, Editor(s)

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