Energy transmitted by laser in historic power-beaming demonstration

During a three-day-long tech demonstration at the David Taylor Model Basin at the Naval Surface Warfare Center in Bethesda, Maryland, attendees gathered to see a long-range, free-space power beaming system. Attendees this day, May 23, could see the system itself—the two 13-foot-high towers, one a 2-kilowatt laser transmitter, the other a receiver of specially designed photovoltaics. But the laser that was beaming 400 watts of power across 325 meters, from the transmitter to the receiver, was invisible to the naked eye. Producer: Jonathan Sunderman Associate Producer: Lennie Pieton Editor: Lennie Pieton Camera Operator: Lennie Pieton For more information: