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Proceedings Paper

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

Paper Details

Date Published: 15 September 2011
PDF: 16 pages
Proc. SPIE 8151, Techniques and Instrumentation for Detection of Exoplanets V, 81510E (15 September 2011); doi: 10.1117/12.892772
Show Author Affiliations
John E. Krist, Jet Propulsion Lab. (United States)
Ruslan Belikov, NASA Ames Research Ctr. (United States)
Laurent Pueyo, The Johns Hopkins Univ. (United States)
Dimitri P. Mawet, Jet Propulsion Lab. (United States)
Dwight Moody, Jet Propulsion Lab. (United States)
John T. Trauger, Jet Propulsion Lab. (United States)
Stuart B. Shaklan, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 8151:
Techniques and Instrumentation for Detection of Exoplanets V
Stuart Shaklan, Editor(s)

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