Phase theory for multiple aperture systems

Erin M. Sabatke; Jose M. Sasian

doi:10.1117/12.405773

31 October 2000 Phase theory for multiple aperture systems

Erin M. Sabatke, Jose M. Sasian

Proceedings Volume 4091, Imaging Technology and Telescopes; (2000) https://doi.org/10.1117/12.405773
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Erin M. Sabatke and Jose M. Sasian "Phase theory for multiple aperture systems", Proc. SPIE 4091, Imaging Technology and Telescopes, (31 October 2000); https://doi.org/10.1117/12.405773

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KEYWORDS

Monochromatic aberrations

Distortion

Wavefronts

Telescopes

Mirrors

Polonium

Aberration theory

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