Assessing the performance limits of internal coronagraphs through end-to-end modeling: a NASA TDEM study

John E. Krist; Ruslan Belikov; Laurent Pueyo; Dimitri P. Mawet; Dwight Moody; John T. Trauger; Stuart B. Shaklan

doi:10.1117/12.892772

15 September 2011 Assessing the performance limits of internal coronagraphs through end-to-end modeling: a NASA TDEM study

John E. Krist, Ruslan Belikov, Laurent Pueyo, Dimitri P. Mawet, Dwight Moody, John T. Trauger, Stuart B. Shaklan

Author Affiliations +

Proceedings Volume 8151, Techniques and Instrumentation for Detection of Exoplanets V; 81510E (2011) https://doi.org/10.1117/12.892772
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

As part of the NASA ROSES Technology Development for Exoplanet Missions (TDEM) program, we are conducting a study of three internal coronagraphs (PIAA, vector vortex, hybrid bandlimited) to understand their behaviors in realistically-aberrated systems with wavefront control (deformable mirrors). This study consists of two milestones: (1) develop wavefront propagation codes appropriate for each coronagraph that are accurate to 1% or better (compared to a reference algorithm) but are also time and memory efficient, and (2) use these codes to determine the wavefront control limits of each architecture. We discuss the results from the study so far, with emphasis on representing the PIAA coronagraph and its wavefront control behavior.

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John E. Krist, Ruslan Belikov, Laurent Pueyo, Dimitri P. Mawet, Dwight Moody, John T. Trauger, and Stuart B. Shaklan "Assessing the performance limits of internal coronagraphs through end-to-end modeling: a NASA TDEM study", Proc. SPIE 8151, Techniques and Instrumentation for Detection of Exoplanets V, 81510E (15 September 2011); https://doi.org/10.1117/12.892772

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