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Proceedings Paper

Eigen-focus beam control for target-in-the-loop
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Paper Abstract

In this paper we demonstrate that the amplitude and phase of the principle eigenfunction for the pupil-plane mutual intensity can be used to specify a beam that concentrates its intensity at the brightest point on the target in a target-in-the-loop system with a spatially incoherent reflected field. In addition, we discuss two methods for beam control: a method for which the beam amplitude and phase are determined as the principle eigenfunction for the measured (but incomplete) pupil-plane mutual intensity; and a method for which the beam amplitude and phase are determined to maximize a window-based image-plane sharpness measure. We demonstrate that the two methods are similar, and that both result in beams that correspond to the principle eigenfunction for an apodized mutual intensity function.

Paper Details

Date Published: 23 August 2005
PDF: 4 pages
Proc. SPIE 5895, Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II, 58950J (23 August 2005); doi: 10.1117/12.619636
Show Author Affiliations
Timothy J. Schulz, Michigan Tech (United States)
Michael C. Roggemann, Michigan Tech (United States)
Baoyong Liu, Michigan Tech (United States)


Published in SPIE Proceedings Vol. 5895:
Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II
Michael T. Valley; Mikhail A. Vorontsov, Editor(s)

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