Fast linearized coronagraph optimizer (FALCO) II: optical model validation and time savings over other methods

Erkin Sidick; A. J. Eldorado Riggs; Garreth Ruane; John Krist; Dwight Moody; Carl Coker

doi:10.1117/12.2312950

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6 July 2018 Fast linearized coronagraph optimizer (FALCO) II: optical model validation and time savings over other methods

Erkin Sidick, A. J. Eldorado Riggs, Garreth Ruane, John Krist, Dwight Moody, Carl Coker

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Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106984S (2018) https://doi.org/10.1117/12.2312950
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We have developed the Fast Linearized Coronagraph Optimizer (FALCO), a new software toolbox for high-contrast, coronagraphic wavefront sensing and control. FALCO rapidly calculates the linearized deformable mirror (DM) response matrices, also called control Jacobians, and can be used for the design, simulation, or testbed operation of several types of coronagraphs. In this paper, we demonstrate that the optical propagation used in FALCO is accurate and matches PROPER. In addition, we demonstrate the drastic reduction in runtime when using FALCO for DM Jacobian calculations instead of the conventional method used, for example with a model of the Wide-Field Infrared Survey Telescope (WFIRST) Coronagraph Instrument (CGI). We then compare the relative accuracy between optical models in FALCO and PROPER.

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Erkin Sidick, A. J. Eldorado Riggs, Garreth Ruane, John Krist, Dwight Moody, and Carl Coker "Fast linearized coronagraph optimizer (FALCO) II: optical model validation and time savings over other methods", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106984S (6 July 2018); https://doi.org/10.1117/12.2312950

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