Simulation and experimental results for a phase retrieval-based algorithm for far-field beam steering and shaping

Michael C. Roggemann; Byron M. Welsh; Bradley R. Stone; Ting Ei Su

doi:10.1117/12.454793

4 February 2002 Simulation and experimental results for a phase retrieval-based algorithm for far-field beam steering and shaping

Michael C. Roggemann, Byron M. Welsh, Bradley R. Stone, Ting Ei Su

Author Affiliations +

Proceedings Volume 4494, Adaptive Optics Systems and Technology II; (2002) https://doi.org/10.1117/12.454793
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

Michael C. Roggemann, Byron M. Welsh, Bradley R. Stone, and Ting Ei Su "Simulation and experimental results for a phase retrieval-based algorithm for far-field beam steering and shaping", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); https://doi.org/10.1117/12.454793

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