According to Lockheed Martin, the Arleigh Burke-class destroyer USS Preble employed its High-Energy Laser with Integrated Optical Dazzler and Surveillance system, known as HELIOS, to engage and neutralise four drones during a Navy-run counter-UAS event. The activity took place last year and was disclosed publicly as part of the company’s latest financial update. …
HELIOS is a roughly 60-kilowatt class laser integrated directly into the Aegis Combat System, allowing it to be operated alongside conventional radar, sensors and weapons. Installed aboard USS Preble, a Flight IIA Arleigh Burke-class destroyer, the system is designed to perform both so-called soft-kill functions, such as dazzling or degrading optical sensors, and hard-kill engagements by heating and damaging the structure of a target.
— Lisa West in American warship downs drones with laser weapon