DARPA News October 5, 2022 DARPA is working on the next leap forward in energy distribution by leveraging wireless power beaming to create a dynamic, adaptive, speed of light wireless energy web. The goal of the Persistent Optical Wireless Energy Relay (POWER) program is to design and demonstrate airborne optical energy relays. These relays are a critical component necessary to allow ground-sourced lasers to be coupled with high-altitude, efficient long-range transmission. Additionally, such relays will enable future multi-path wireless energy networks. It is a three-phase development effort, culminating in a compelling energy relay flight demonstration. This is the internet for […]
Category Archives: Wireless power transfer
Researchers use infrared light to wirelessly transmit power over 30 meters
Science Daily August 30, 2022 Researchers in South Korea used an erbium-doped fiber amplifier optical power source with a central wavelength of 1550 nm. and wavelength division multiplexing filter that created a narrowband beam with optical power within the safety limits for free space propagation. They optimized distributed laser charging which enables self-alignment without tracking processes and automatically shifts to a safe low power delivery mode if an object or a person blocks the line of sight. They incorporated a spherical ball lens retroreflector in the receiver unit to facilitate 360-degree transmitter-receiver alignment, which maximized the power transfer efficiency. The […]