On-sky demonstration of astrophotonic CO2 correlation sensing using silicon ring resonator filters

Ross Cheriton; Volodymyr Artyshchuk; Erin Tonita; Adam Densmore; Suresh Sivanandam; Kathyrn Jackson; Olivier Lardiere; Jean-Pierre Véran; Martin Vachon; Shurui Wang; John Weber; Maziyar Milanizadeh; Jianhao Zhang; Md Saad-Bin-Alam; Jens H. Schmid; Dan-Xia Xu; Pavel Cheben; Siegfried Janz; Ernst de Mooij

doi:10.1117/12.3020837

19 July 2024 On-sky demonstration of astrophotonic CO₂ correlation sensing using silicon ring resonator filters

Ross Cheriton, Volodymyr Artyshchuk, Erin Tonita, Adam Densmore, Suresh Sivanandam, Kathyrn Jackson, Olivier Lardiere, Jean-Pierre Véran, Martin Vachon, Shurui Wang, John Weber, Maziyar Milanizadeh, Jianhao Zhang, Md Saad-Bin-Alam, Jens H. Schmid, Dan-Xia Xu, Pavel Cheben, Siegfried Janz, Ernst de Mooij

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 13096A3 (2024) https://doi.org/10.1117/12.3020837
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Integrated photonics can be used for stable, cost-effective and precision instruments in astronomy. We present our development and testing of a silicon ring resonator as a tunable correlation filter, facilitating real-time gas contrast for specific molecules with low cross-sensitivity. Ring resonators for various gases in H-band, polarization-selective filters, and fiber-coupled prototypes are described. We present the first on-sky demonstration of silicon-on-insulator astrophotonics, and telluric CO2 absorption feature detection as a proof-of-concept using the 1.2m DAO telescope and REVOLT adaptive optics instrument. Comparisons with traditional spectrographs inform discussions on improving performance and extensions towards an observatory-class instrument for exoplanet biosignature detection.

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

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Ross Cheriton, Volodymyr Artyshchuk, Erin Tonita, Adam Densmore, Suresh Sivanandam, Kathyrn Jackson, Olivier Lardiere, Jean-Pierre Véran, Martin Vachon, Shurui Wang, John Weber, Maziyar Milanizadeh, Jianhao Zhang, Md Saad-Bin-Alam, Jens H. Schmid, Dan-Xia Xu, Pavel Cheben, Siegfried Janz, and Ernst de Mooij "On-sky demonstration of astrophotonic CO₂ correlation sensing using silicon ring resonator filters", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 13096A3 (19 July 2024); https://doi.org/10.1117/12.3020837

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