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9 March 2020 Laser cooling for low-earth observation missions: size, weight, and power consequences at the satellite level and practical optical implementation (Conference Presentation)
Gilles Nogues, Rémi Vicente, Jean-Michel Niot, Thierry Wiertz, Pierre Contini, Arnaud Gardelein, Giovanni Cittadino, Alberto Di Lieto, Mauro Tonelli
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Proceedings Volume 11298, Photonic Heat Engines: Science and Applications II; 1129807 (2020) https://doi.org/10.1117/12.2544763
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
Laser cooling allows vibration-free cryocooling down to 100K and appears as a promising technology for future satellite missions. We evaluate the impact of a laser cooler onboard a microsatellite on size, weight and power at platform levels and compare it to a mechanical cryocooler. Practically we intend to use a cooling head attached to the focal plane holding the instruments based on state-of-the-art cooling crystals 10 %Yb:YLF inside an astigmatic absorption cell. It will be linked by a fiber to a second system that includes the opto-electronics and laser. We will present initial results on a fiber-coupled cooling head.
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© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Gilles Nogues, Rémi Vicente, Jean-Michel Niot, Thierry Wiertz, Pierre Contini, Arnaud Gardelein, Giovanni Cittadino, Alberto Di Lieto, and Mauro Tonelli "Laser cooling for low-earth observation missions: size, weight, and power consequences at the satellite level and practical optical implementation (Conference Presentation)", Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 1129807 (9 March 2020); https://doi.org/10.1117/12.2544763
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KEYWORDS
Satellites
Cryocoolers
Head
Crystals
Earth observing sensors
Infrared radiation
Laser applications
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