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Research, development, manufacturing, and sales of high-voltage, medium-to-high-power laser power supplies, power supplies for power, communications, industrial, and medical applications, modular power supplies, adapters, and intelligent control systems.

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2021

11-01

Laser-based wireless power transfer opens the door to a new world.

According to an official press release from Ericsson, during this demonstration, the two parties successfully activated a fully “powerless” Ericsson Streetmacro 6701 5G millimeter-wave base station—without drawing power from the street grid or relying on on-site power generation—using laser technology developed by PowerLight Technologies. The demonstration achieved energy transmission of 480 watts over a distance of 300 meters (985 feet). The system consists primarily of two components: a transmitter and a receiver. At the transmitter end, electrical power is used to generate a highly intense light beam, which is then transmitted to the receiver. The receiver employs a specialized photovoltaic array to capture this beam, converting the incoming photons into electrical energy that can power any device connected to it. Kevin Zvokel, Head of Networks at Ericsson North America, stated that the laser-beam wireless power transmission solution enables safe, long-distance power delivery without the need for grid connections, thereby eliminating the obstacles posed by battery site selection during network deployment. This approach significantly reduces deployment time and enhances flexibility. Claes Olsson, Executive Chairman of PowerLight Technologies, noted that most people are already familiar with wireless charging technologies used in small electronic devices such as mobile phones and smartwatches. However, the demonstration conducted by Ericsson and PowerLight Technologies represents a breakthrough—a crucial step toward the commercialization of safe, wireless power transmission on a larger scale. Moreover, PowerLight Technologies is currently developing a system that will enable secure, wireless power transmission over distances of several kilometers within the next few years. This wireless transmission solution from Ericsson and PowerLight Technologies replaces traditional power cables, helping operators rapidly deploy base stations—particularly in urban pole-mounted sites and micro-stations. It is ideally suited for temporary scenarios requiring rapid deployment, such as emergency communications support or periods of high traffic demand. Additionally, this technology can conveniently power a wide range of IoT devices, including unmanned AGVs, drones, and sensors.