Source: US Navy (video statements)
Amphibious transport dock ship USS Portland (LPD 27) successfully disabled an unmanned aerial vehicle (UAV) with a Solid State Laser – Technology Maturation Laser Weapon System Demonstrator (LWSD) MK 2 MOD 0 on May 16.
LWSD is a high-energy laser weapon system demonstrator developed by the Office of Naval Research and installed on Portland for an at-sea demonstration. LWSD’s operational employment on a Pacific Fleet ship is the first system-level implementation of a high-energy class solid-state laser. The laser system was developed by Northrup Grumman, with full System and Ship Integration and Testing led by NSWC Dahlgren and Port Hueneme.