Advanced Receiver/Converter Experiments for Laser Wireless Power Transmission

Computer Science – Performance

Scientific paper

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Scientific paper

For several years NASA, ENTECH, and UAH have been working on various aspects of space solar power systems, some of which include four process elements: (1) space solar radiation collection and conversion to electrical power (2) conversion of this electrical power to laser radiation (3) wireless power transmission of this laser radiation to an end-use location (4) collection of the laser radiation and conversion to electrical power For the first element above, photovoltaic concentrator systems using ultra-light Fresnel lenses to focus space sunlight onto small solar cells have demonstrated significant performance, mass, and cost advantages over competing solar arrays. Recently, the photovoltaic concentrator approach has also been proposed for the fourth element, to provide similar performance, mass, and cost advantages over competing laser receiver/converters. This paper describes the new laser receiver/converter approach, including very encouraging test results on early-stage proof-of-concept prototype hardware.

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