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How much power can be beamed as light?

Question asked by Ramani Aswath in #Coffee Room on Oct 24, 2019
Ramani Aswath
Ramani Aswath · Oct 24, 2019
Rank A1 - PRO

Machine Design reports: Attendees at a three-day tech demonstration at the Naval Surface Warfare Center in Bethesda, Md. got to witness the first long-range, free-space power beaming system. It consists of the two 13-ft-high towers—one a 2-kW laser transmitter, the other a receiver of specially designed photovoltaics. The important part was the laser beaming 400 watts of power across 1,066 ft, but it was invisible to the naked eye.

https://www.machinedesign.com/mechanical-motion-systems/researchers-transmit-energy-using-laser?NL=MACD-001&Issue=MACD-001_20191023_MACD-001_653&sfvc4enews=42&cl=article_1_b&utm_rid=CPG05000000559845&utm_campaign=29283&utm_medium=email&elq2=e346b5d35e384924aa83b79a869f8037&oly_enc_id=5801H1415478C6Y<iframe src="" frameborder="0" allowTransparency="true" style="border:none;overflow:hidden;width:600px;height:400px;"></iframe>

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