Poster + Paper
27 August 2022 APLC-optimization: an apodized pupil Lyot coronagraph design survey toolkit
Author Affiliations +
Conference Poster
Abstract
We present a publicly available software package developed for exploring apodized pupil Lyot coronagraph (APLC) solutions for various telescope architectures. In particular, the package optimizes the apodizer component of the APLC for a given focal-plane mask and Lyot stop geometry to meet a set of constraints (contrast, bandwidth etc.) on the coronagraph intensity in a given focal-plane region (i.e. dark zone). The package combines a high-contrast imaging simulation package (HCIPy) with a third-party mathematical optimizer (Gurobi) to compute the linearly optimized binary mask that maximizes transmission. We provide examples of the application of this toolkit to several different telescope geometries, including the Gemini Planet Imager (GPI) and the High-contrast imager for Complex Aperture Telescopes (HiCAT) testbed. Finally, we summarize the results of a preliminary design survey for the case of a ∼6 m aperture off-axis space telescope, as recommended by the 2020 NASA Decadal Survey, exploring APLC solutions for different segment sizes. We then use the Pair-based Analytical model for Segmented Telescope Imaging from Space (PASTIS) to perform a segmented wavefront error tolerancing analysis on these solutions.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bryony F. Nickson, Emiel H. Por, Meiji M. Nguyen, Rémi Soummer, Iva Laginja, Ananya Sahoo, Laurent Pueyo, Katheryn St. Laurent, Mamadou N’Diaye, Neil T. Zimmerman, James Noss, and Marshall Perrin "APLC-optimization: an apodized pupil Lyot coronagraph design survey toolkit", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121805K (27 August 2022); https://doi.org/10.1117/12.2630686
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KEYWORDS
Coronagraphy

Telescopes

Tolerancing

Image segmentation

Optical instrument design

Gemini Planet Imager

Point spread functions

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