Optical design of infrared pyramid wavefront sensor for the MMT

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1117/12.2273290
AuthorSearch for: 1; Search for: 1; Search for: ; Search for: 1; Search for: ; Search for: ; Search for: 1; Search for: 1
EditorSearch for: Hallibert, Pascal; Search for: Hull, Tony B.; Search for: Kim, Dae Wook
Name affiliation
  1. National Research Council Canada. Herzberg Astronomy and Astrophysics
FormatText
TypeArticle
Journal titleAstronomical Optics: Design, Manufacture, and Test of Space and Ground Systems
Series titleProceedings of SPIE; no. 10401
ISSN0277-786X
1996-756X
ISBN9781510612594
9781510612600
Pages# of pages: 12
Subjectwavefront measurement; pyramid wavefront sensor; pupil imaging; adaptive optics
Abstract
We report the optical design of an infrared (0.85-1.8 μm) pyramid wavefront sensor (IRPWFS) that is designed for the 6.5m MMT on telescope adaptive optics system using the latest developments in low-noise infrared avalanche photodiode arrays. The comparison between the pyramid and the double-roof prism based wavefront sensors and the evaluation of their micro pupils’ quality are presented. According to our analysis, the use of two double-roof prisms with achromatic materials produces the competitive performance when compared to the traditional pyramid prism, which is difficult to manufacture. The final micro pupils on the image plane have the residual errors of pupil position, chromatism, and distortion within 1/10 pixel over the 2×2 arcsecond field of view, which meet the original design goals.
Publication date
PublisherSociety of Photo-Optical Instrumentation Engineers (SPIE)
LanguageEnglish
Peer reviewedYes
NPARC number23002489
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