US Military Funds PowerLight In-Flight Laser Recharging for Autonomous Drones
Directed optical power beaming enables continuous flight by wirelessly recharging UAVs mid-air.
1Laser Power Beaming Contract
The United States defense sector's Operational Energy Innovation directorate awarded a development contract to PowerLight Technologies. The agreement funds the Aerial ReCharge system, designed to transmit energy over long distances to unmanned aerial vehicles. The technology enables mid-flight battery replenishment without requiring tactical assets to land or interrupt missions.
2Optical Transfer Mechanics
Unlike standard near-field electromagnetic induction systems, Aerial ReCharge uses focused optical power beaming through directed lasers. A ground or mobile transmitter directs a calibrated laser beam precisely at a receiver mounted on the drone. This mechanism converts coherent light into electrical power to charge onboard batteries and critical payloads.
3Dynamic In-Flight Recharging
The primary operational breakthrough lies in charging units while both transmitter and receiver remain in motion. PowerLight designed the transmitting system to operate autonomously, tracking and following unmanned aircraft during complex flight paths. Continuous optical links provide sustained energy delivery over distances exceeding several thousand feet in varied operating conditions.
4Eliminating Recovery Logistics
Traditional battery limitations force unmanned systems to land frequently for physical battery swaps or recharging cycles. Power beaming directly eliminates recovery logistics, dramatically cutting operational turnaround times and maintenance overhead. Sustained mid-air charging ensures airborne assets preserve continuous surveillance, electronic warfare, or communication capabilities over designated operational areas.
5Target Platform Validation
PowerLight verified its optical receiver payload on a Kraus Hamdani Aerospace K1000ULE unmanned platform during field demonstrations. Development and operational validation continue at Shaw Air Force Base in South Carolina. Testing aims to confirm compatibility across diverse aircraft, including Group 2 fixed-wing systems and heavy payload carriers.
6Protecting Forward Operations
Executing regular landing and battery recovery operations in contested territories exposes ground crews and aerial platforms to detection. Continuous in-flight charging removes physical recovery vulnerabilities, keeping drone operations active from secure stand-off ranges. Defense leadership emphasizes that maximizing mission endurance directly mitigates logistical exposure for forward-deployed military personnel.
7Multi-Domain Energy Beaming
Optical power transmission is engineered to operate across varied physical domains beyond direct ground-to-air links. Architecture roadmaps incorporate ground-to-ground, air-to-air, and prospective space-to-space operational profiles. This flexibility establishes beamed laser power as a modular energy distribution framework rather than an isolated, platform-specific tactical charging tool for lightweight aerial drones.
8Strategic Operational Impact
Transitioning from stored onboard chemical energy to active remote power delivery reshapes autonomous unmanned aviation. Reducing battery mass allows manufacturers to allocate significant airframe capacity to heavier sensors and mission payloads. Directed energy integration marks a structural shift toward perpetual flight operations across next-generation autonomous defense architectures.