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Fast linearized coronagraph optimizer (FALCO) III: optimization of key coronagraph design parameters

Coker, Carl T. and Ruane, Garreth and Eldorado Riggs, A. J. and Sidick, Erkin and Seo, Byoung-Joon and Kern, Brian and Marx, David and Shaklan, Stuart (2018) Fast linearized coronagraph optimizer (FALCO) III: optimization of key coronagraph design parameters. In: Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.10698. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1069851. ISBN 9781510619494. http://resolver.caltech.edu/CaltechAUTHORS:20181207-083716382

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Abstract

Deformable mirrors (DMs) are increasingly becoming part of nominal coronagraph designs, such as the hybrid Lyot coronagraph, in addition to their role counteracting optical aberrations. Previous studies have investigated the effects of the inter-DM Fresnel number on achievable contrast, throughput, and tip/tilt sensitivity for apodized coronagraphs augmented with DMs to suppress diffraction from struts and segment gaps. In this paper, we build upon that previous work by directly suppressing tip/tilt sensitivity with the controller, both for coronagraphs with and without apodizers. We also explore the effects of other important design parameters such as actuator density and tip/tilt controller weighting on performance. These comprehensive coronagraph design studies are enabled by the Fast Linearized Coronagraph Optimizer (FALCO) software toolbox, which provides rapid re-calculation of the DM response matrix for a variety of coronagraphs.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2313788DOIArticle
ORCID:
AuthorORCID
Ruane, Garreth0000-0003-4769-1665
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. This work was supported by an appointment to the NASA Postdoctoral Program at the Jet Propulsion Laboratory, administered by the Universities Space Research Association under contract with NASA.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
NASA Postdoctoral ProgramUNSPECIFIED
Record Number:CaltechAUTHORS:20181207-083716382
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181207-083716382
Official Citation:Carl T. Coker, Garreth Ruane, A J Eldorado Riggs, Erkin Sidick, Byoung-Joon Seo, Brian Kern, David Marx, Stuart Shaklan, "Fast linearized coronagraph optimizer (FALCO) III: optimization of key coronagraph design parameters," Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 1069851 (7 August 2018); doi: 10.1117/12.2313788
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91554
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Dec 2018 23:12
Last Modified:07 Dec 2018 23:12

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