Phase-retrieval-based algorithms for far-field beam steering and shaping

Byron M. Welsh; Michael C. Roggemann; Greg L. Wilson

doi:10.1117/12.363611

5 October 1999 Phase-retrieval-based algorithms for far-field beam steering and shaping

Byron M. Welsh, Michael C. Roggemann, Greg L. Wilson

Proceedings Volume 3763, Propagation and Imaging through the Atmosphere III; (1999) https://doi.org/10.1117/12.363611
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Electro-optical sensors on future aircraft and spacecraft will be used for targeting and situational awareness and will be required to have a number of demanding technical characteristics. A key technical 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 wavefront control algorithms. We have developed wave front control algorithms that allow for dynamic far-field beam steering and shaping, and aberration compensation. Our approach is based on non conventional wave front control achieved by solving a multi- dimensional minimization problem. The minimization problem involves specifying a desired beam shape and using phase- retrieval algorithms to search for an optimal set of wavefront control signals.

Citation Download Citation

Byron M. Welsh, Michael C. Roggemann, and Greg L. Wilson "Phase-retrieval-based algorithms for far-field beam steering and shaping", Proc. SPIE 3763, Propagation and Imaging through the Atmosphere III, (5 October 1999); https://doi.org/10.1117/12.363611

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