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3 October 2022 Ultra-wideband photonic spectrometer for PBL sensing
Mehmet Ogut, Sidharth Misra, Shannon Brown, Siamak Forouhar, Janusz Murakowski, Michael Gehl
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Proceedings Volume 12232, Earth Observing Systems XXVII; 1223207 (2022) https://doi.org/10.1117/12.2632853
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States
Abstract
The planetary boundary layer (PBL) is a key interface of energy exchange between the surface and atmosphere, however, current spaceborne sensors are not optimized to measure in this region. There is significantly more PBL temperature and humidity information content in the microwave spectrum that current satellite instruments resolve. The photonic spectro-radiometer developed under NASA ESTO ACT-20 program capable of fully resolving the microwave spectrum to return all PBL information in the microwave spectrum. A novel photonic integrated circuit is designed having integrated a modulator for up-conversion of signals into optics domain, an arrayed waveguide grating and star couplers with filters.
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Mehmet Ogut, Sidharth Misra, Shannon Brown, Siamak Forouhar, Janusz Murakowski, and Michael Gehl "Ultra-wideband photonic spectrometer for PBL sensing", Proc. SPIE 12232, Earth Observing Systems XXVII, 1223207 (3 October 2022); https://doi.org/10.1117/12.2632853
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KEYWORDS
Spectroscopy
Atmospheric modeling
Microwave radiation
Ocean optics
Photodetectors
Photonic integrated circuits
Radio optics
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