The US Navy brought a ‘one-of-a-kind’ laser weapon back from the dead
By Jared Keller
Mar 31, 2026, 08:09 AM
Editor’s note: This story originally appeared on Laser Wars, a newsletter about military laser weapons and other futuristic defense technology. Subscribe here.
The U.S. Navy spent at least six months resurrecting a high-energy laser weapon that previously graced the bow of a warship for a new military exercise last year, the service recently revealed.
The Navy’s Directed Energy Systems Integration Laboratory, or DESIL, a Naval Base Ventura County, California, facility that evaluates laser weapons in a maritime environment, “ramped up efforts to restore critical functions” to the service’s “one-of-a-kind” 150 kW Solid State Laser Technology Maturation (SSL-TM) demonstrator starting in early March 2025, according to recently published ‘year in review’ bulletin from Naval Sea Systems Command.
Initiated in 2012 and officially known as the Laser Weapon System Demonstrator Mk 2 Mod 0, the SSL-TM demonstrator was originally installed aboard the San Antonio-class amphibious transport dock USS Portland in 2019.
The system, described as the successor to the 30 kW AN/SEQ-3 Laser Weapon System — also known as the XN-1 LaWS — that was mounted on the Austin-class amphibious transport dock USS Ponce in 2014, was designed to “provide a new capability to the Fleet to address known capability gaps against asymmetric threats,” such as now-ubiquitous aerial drones and small boats laden with explosives, as well as “inform future acquisition strategies, system designs integration architectures and fielding plans for laser weapon systems,” according to Navy budget documents.
https://www.defensenews.com/industry/techwatch/2026/03/31/the-us-navy-brought-a-one-of-a-kind-laser-weapon-back-from-the-dead/
