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Completed TRL 6 (started at 4, targeting 6)
We propose to develop and demonstrate a compact high efficiency power beaming system that couples a 1.5-micron laser source to a high quantum efficiency, low cost, GaSb-based infrared photovoltaics receiver for agile power distribution from the edge of a moon crater to a charging station. This could serve as a first step toward eye safe power dense wireless energy transfer. With the use of concentrator lenses the efficiency of the system will be higher and the weight will be lower.
A power transfer system using an infrared laser to send power in permanently shadow regions on the lunar surface. A solar power satellite equipped with an infrared laser could beam energy down to lunar bases during lunar nights. Spacecraft to spacecraft power beaming. Lasers are also used for sending data. A future application could be to merge this technology with laser communication to send both power and data.
The military could use the power transfer system to beam power to a squadron of troops to power their gear. Power can be beamed to areas on Earth where laying 100's of miles of cable isn't feasible. Temporary bases for military or research purposes could have power beamed to them during the lifetime of the base. Power beaming to drones to sustain longer flight.
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