Anisoplanatism in adaptive optics systems due to pupil aberrations

Brian J. Bauman

doi:10.1117/12.618231

8 October 2005 Anisoplanatism in adaptive optics systems due to pupil aberrations

Brian J. Bauman

Proceedings Volume 5903, Astronomical Adaptive Optics Systems and Applications II; 59030R (2005) https://doi.org/10.1117/12.618231
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Adaptive optics systems typically include an optical relay that simultaneously images the science field to be corrected and also a set of pupil planes conjugate to the deformable mirror of the system. Often, in the optical spaces where DM's are placed, the pupils are aberrated, leading to a displacement and/or distortion of the pupil that varies according to field position--producing a type of anisoplanatism, i.e., a degradation of the AO correction with field angle. The pupil aberration phenomenon is described and expressed in terms of Seidel aberrations. An expression for anisoplanatism as a function of pupil distortion is derived, an example of an off-axis parabola is given, and a convenient method for controlling pupil-aberration-generated anisoplanatism is proposed.

Citation Download Citation

Brian J. Bauman "Anisoplanatism in adaptive optics systems due to pupil aberrations", Proc. SPIE 5903, Astronomical Adaptive Optics Systems and Applications II, 59030R (8 October 2005); https://doi.org/10.1117/12.618231

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