A hybrid coronagraphic approach using photonic integrated circuits and bulk optic coronagraphs

Emiel H. Por; Laurent Pueyo; Remi Soummer; Ruslan Belikov; Padrip Gatkine; Raphael Pourcelot

doi:10.1117/12.3020690

24 August 2024 A hybrid coronagraphic approach using photonic integrated circuits and bulk optic coronagraphs

Emiel H. Por, Laurent Pueyo, Remi Soummer, Ruslan Belikov, Padrip Gatkine, Raphael Pourcelot

Author Affiliations +

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130921U (2024) https://doi.org/10.1117/12.3020690
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The Habitable Worlds Observatory (HWO) aims for high-contrast imaging of exoplanets, targeting 1e-10 contrasts. Current coronagraph designs fall short of the fundamental coronagraphic limit, providing an opportunity for increasing the science yield of HWO. Photonic integrated circuits (PICs) are in theory able to achieve the fundamental limit. However, manufacturing errors in PICs introduce modal crosstalk, degrading contrast. To address this, we use a traditional PIAACMC coronagraph as a pre-filter before injection into the PIC. The entire system is optimized for its coronagraphic performance. We show initial simulations of this hybrid coronagraph for unobscured and obscured telescope pupils, with a focus on circuit design and active tuning algorithms for the PIC.

Conference Presentation

Citation Download Citation

Emiel H. Por, Laurent Pueyo, Remi Soummer, Ruslan Belikov, Padrip Gatkine, and Raphael Pourcelot "A hybrid coronagraphic approach using photonic integrated circuits and bulk optic coronagraphs", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130921U (24 August 2024); https://doi.org/10.1117/12.3020690

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