Design, integration, and test of the optical telescope assembly for the photometric observations of exoplanet transits (POET) mission

Anne-Sophie Poulin-Girard; Samantha Pelletier-Ouellet; Martin Larouche; Charles Fortin; Maryse Beauchemin; François Côté; Samuel Dominic Lortie; Frédéric Grandmont; Jason F. Rowe; Kelsey Hoffman; Stanimir Metchev

doi:10.1117/12.3028024

30 September 2024 Design, integration, and test of the optical telescope assembly for the photometric observations of exoplanet transits (POET) mission

Anne-Sophie Poulin-Girard, Samantha Pelletier-Ouellet, Martin Larouche, Charles Fortin, Maryse Beauchemin, François Côté, Samuel Dominic Lortie, Frédéric Grandmont, Jason F. Rowe, Kelsey Hoffman, Stanimir Metchev

Author Affiliations +

Proceedings Volume 13133, Optical System Alignment, Tolerancing, and Verification XV; 131330F (2024) https://doi.org/10.1117/12.3028024
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

POET is a proposed Canadian Microsatellite mission to detect new, potentially habitable, rocky planets transiting low-mass stars, and to characterize the atmospheres of known transitioning extrasolar planets. The allreflective telescope offers simultaneous imaging in the u-band (300-400 nm), VNIR (400-900 nm) and SWIR (900-1700 nm) through a 20 cm aperture. The optical telescope assembly (OTA) has been designed and build with support from the Space Technology Development Program (STDP) of the Canadian Space Agency. The prototype underwent complete integration and optical properties testing including ensquared energy, Modulation Transfer Function, distortion, and Effective Focal Length measurement. Results show that the design is compliant with expected performances at ambient temperature. A Thermal-Vacuum Chamber campaign over the range of operation temperature has been designed to verify the OTA’s performance from -20 °C to 20°C. This enables the investigation of image quality stability in a sub-set of environmental conditions, increasing the OTA’s Technology Readiness Level. POET is a collaboration between Bishop’s University, Western University, ABB and SFL-UTIAS.

Conference Presentation

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

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Anne-Sophie Poulin-Girard, Samantha Pelletier-Ouellet, Martin Larouche, Charles Fortin, Maryse Beauchemin, François Côté, Samuel Dominic Lortie, Frédéric Grandmont, Jason F. Rowe, Kelsey Hoffman, and Stanimir Metchev "Design, integration, and test of the optical telescope assembly for the photometric observations of exoplanet transits (POET) mission", Proc. SPIE 13133, Optical System Alignment, Tolerancing, and Verification XV, 131330F (30 September 2024); https://doi.org/10.1117/12.3028024

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