Silicon photonic aperture synthesis for long baseline near-infrared interferometry

Ross Cheriton; Volodymyr Artyshchuk; Erin Tonita; Glen Herriot; Brent Carlson; Thushara Gunaratne; Zoran Ljusic; Alexis Hill; Jean-Pierre Véran; John Weber; Jianhao Zhang; Maziyar Milanizadeh; Md Saad-Bin-Alam; Jens H. Schmid; Dan-Xia Xu; Pavel Cheben; Siegfried Janz

doi:10.1117/12.3019093

28 August 2024 Silicon photonic aperture synthesis for long baseline near-infrared interferometry

Ross Cheriton, Volodymyr Artyshchuk, Erin Tonita, Glen Herriot, Brent Carlson, Thushara Gunaratne, Zoran Ljusic, Alexis Hill, Jean-Pierre Véran, John Weber, Jianhao Zhang, Maziyar Milanizadeh, Md Saad-Bin-Alam, Jens H. Schmid, Dan-Xia Xu, Pavel Cheben, Siegfried Janz

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 130950W (2024) https://doi.org/10.1117/12.3019093
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

For Very Long Baseline Interferometry high-resolution imaging of exoplanets, an astrophotonic-based aperture synthesis concept is proposed for high-resolution direct imaging of exoplanets. A silicon photonic chip incorporates microheaters and optical phase shifters for precise control of delays and phase synchronization from widely separated receivers. A satellite laser guide star with a modulated optical signal serves as a global phase reference, enabling high-speed, high-stroke phase compensation and combining. The chip's design addresses challenges such as atmospheric turbulence and phase stability in optical frequencies. The study outlines the current proof-of-concept instrument status, measured performance, chip fabrication, and routes towards photonics-enabled exoplanet imaging.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ross Cheriton, Volodymyr Artyshchuk, Erin Tonita, Glen Herriot, Brent Carlson, Thushara Gunaratne, Zoran Ljusic, Alexis Hill, Jean-Pierre Véran, John Weber, Jianhao Zhang, Maziyar Milanizadeh, Md Saad-Bin-Alam, Jens H. Schmid, Dan-Xia Xu, Pavel Cheben, and Siegfried Janz "Silicon photonic aperture synthesis for long baseline near-infrared interferometry", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 130950W (28 August 2024); https://doi.org/10.1117/12.3019093

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