1 August 1990 Pupil geometry and pupil reimaging in telescope arrays
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This paper considers the issues of lateral and longitudinal pupil geometry in ground-based telescope arrays, such as IOTA. In particular, it is considered whether or not pupil re-imaging is required before beam combination. By considering the paths of rays through the system, an expression is derived for the optical path errors in the combined wavefront as a function of array dimensions, telescope magnification factor, viewing angle, and field-of-view. By examining this expression for the two cases of pupil-plane and image-plane combination, operational limits can be found for any array. As a particular example, it is shown that for IOTA no pupil re-imaging optics will be needed.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wesley A. Traub, Wesley A. Traub, } "Pupil geometry and pupil reimaging in telescope arrays", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); doi: 10.1117/12.19283; https://doi.org/10.1117/12.19283

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