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Proceedings Paper

The WFIRST coronagraph instrument phase B optical design
Author(s): Hong Tang; Michael Rodgers; Brandon Creager; John Krist; James McGuire; Keith Patterson; Mayer Rud; Fang Shi; Feng Zhao
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Paper Abstract

The WFIRST Coronagraph Instrument will perform direct imaging of exoplanets via coronagraphy of the host star. The Phase B optical design fits within a new allocated instrument enclosure and accommodates both Hybrid Lyot and Shaped Pupil coronagraphs. It provides optical path and space for accessible focal planes for occulting masks and field stops. It provides accessible pupil planes for shaped pupil and Lyot masks. It accommodates ten active optical assemblies, including one fast steering mirror, on focusing mirror, two deformable mirrors, and six precision alignment mechanisms. We present the optical design and analyses for the Direct Imaging channel, including polarization imaging. We also present the performance analysis of pupil imaging for starlight illumination and diffused light illumination of the pupil.

Paper Details

Date Published: 16 September 2019
PDF: 8 pages
Proc. SPIE 11117, Techniques and Instrumentation for Detection of Exoplanets IX, 111170C (16 September 2019); doi: 10.1117/12.2530506
Show Author Affiliations
Hong Tang, Jet Propulsion Lab. (United States)
Michael Rodgers, Synopsys, Inc. (United States)
Brandon Creager, Jet Propulsion Lab. (United States)
John Krist, Jet Propulsion Lab. (United States)
James McGuire, Jet Propulsion Lab. (United States)
Keith Patterson, Jet Propulsion Lab. (United States)
Mayer Rud, Jet Propulsion Lab. (United States)
Fang Shi, Jet Propulsion Lab. (United States)
Feng Zhao, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 11117:
Techniques and Instrumentation for Detection of Exoplanets IX
Stuart B. Shaklan, Editor(s)

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