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1 April 2022 Electrically controlled reconfigurable apertures for free space optical communications
Ruzan Sokhoyan, Meir Y. Grajower, Jared F. Sisler, Komron J. Shayegan, Prachi Thureja, Harry A. Atwater
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Proceedings Volume PC11993, Free-Space Laser Communications XXXIV; PC1199301 (2022) https://doi.org/10.1117/12.2610570
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Chip-scale beam steering units, which would replace currently used mechanical gimbals, could revolutionize the field of free space optical communications. We review chip-scale technologies, which enable electronic beam reconfigurations and steering without mechanically moving parts. We assess the feasibility of using different electrically steerable apertures such as active metasurfaces and optical phased arrays for laser communications. Our optical link budget analysis shows that, for metasurface apertures of 1 cm in diameter and input powers of 5 W, the free space link range can approach ~ 10,000 km. We also provide an outlook how the link range can be increased further.
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Ruzan Sokhoyan, Meir Y. Grajower, Jared F. Sisler, Komron J. Shayegan, Prachi Thureja, and Harry A. Atwater "Electrically controlled reconfigurable apertures for free space optical communications", Proc. SPIE PC11993, Free-Space Laser Communications XXXIV, PC1199301 (1 April 2022); https://doi.org/10.1117/12.2610570
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KEYWORDS
Free space optical communications
Phased array optics
Beam steering
Free space optics
Oxides
Electro optics
Free space
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