A photonic coronagraph architecture achieving theoretical near ideal performance

Jeffrey B. Jewell; James K. Wallace; Luis Costa; Dylan M. McKeithen; Tobias S. Wenger; Ryan M. Briggs

doi:10.1117/12.3020723

24 August 2024 A photonic coronagraph architecture achieving theoretical near ideal performance

Jeffrey B. Jewell, James K. Wallace, Luis Costa, Dylan M. McKeithen, Tobias S. Wenger, Ryan M. Briggs

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130921S (2024) https://doi.org/10.1117/12.3020723
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Theoretical ideal coronagraph performance is achieved when the light from an exoplanet can be coherently decomposed into a linear combination of spatial modes indistinguishable from that containing starlight, and an orthogonal mode. The intensity in the exoplanet mode orthogonal from the stellar modes as a function of separation from the star represents theoretical ideal coronagraph performance. Here we introduce a photonic coronagraph architecture capable of achieving this near-ideal exoplanet throughput at small inner working angles. We will review progress at the NASA Jet Propulsion Lab on prototype hardware implementing this photonic coronagraph concept and discuss our progress at device calibration and closed-loop control required for a photonic coronagraph in a changing wavefront environment.

Conference Presentation

Citation Download Citation

Jeffrey B. Jewell, James K. Wallace, Luis Costa, Dylan M. McKeithen, Tobias S. Wenger, and Ryan M. Briggs "A photonic coronagraph architecture achieving theoretical near ideal performance", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130921S (24 August 2024); https://doi.org/10.1117/12.3020723

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