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Proceedings Paper

Phase theory for multiple aperture systems
Author(s): Erin M. Sabatke; Jose M. Sasian
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Paper Abstract

We establish the groundwork for a phase theory applicable to multiple-aperture systems. To do this, we define ideal behavior as the phase behavior of an off-axis system that has inherent rotational symmetry. Then we examine the phase behavior of a more general system that has only a single plane of symmetry. This system represents a branch of an actual synthetic aperture system. The comparison of the two systems leads to conditions for which the plane symmetric system has ideal behavior. As a result of this comparison, design rules that are commonly applied to multiple aperture systems appear naturally, including the well-known requirement that the exit pupil is a scaled copy of the entrance pupil. The theory also shows that in reflective synthetic telescopes, fewer mirrors are required to achieve ideal behavior if the mirrors are off- axis sections of an axially-symmetric parent system, rather than on-axis mirrors. The phase theory that we present is cohesive, provides useful design guidelines, and can be considered an addition to wave aberration theory.

Paper Details

Date Published: 31 October 2000
PDF: 12 pages
Proc. SPIE 4091, Imaging Technology and Telescopes, (31 October 2000); doi: 10.1117/12.405773
Show Author Affiliations
Erin M. Sabatke, Optical Sciences Ctr./Univ. of Arizona (United States)
Jose M. Sasian, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 4091:
Imaging Technology and Telescopes
James W. Bilbro; James B. Breckinridge; Mark J. Eckart; James B. Breckinridge; Richard A. Carreras; Richard A. Carreras; James W. Bilbro; Stanley R. Czyzak; Robert D. Fiete; Mark J. Eckart; Robert D. Fiete; Paul S. Idell, Editor(s)

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