Security

Laser test positions US Navy a step closer to lasers for ship self-defence

Alex Baird

Marking a milestone for the US Navy, the US Office of Naval Research (ONR) and its industry partner on April 6 successfully tested a solid-state, high-energy laser (HEL) from a surface ship, which disabled a small target vessel.

The navy and Northrop Grumman completed at-sea testing of the Maritime Laser Demonstrator (MLD), which validated the potential to provide advanced self-defence for surface ships and personnel by keeping small boat threats at a safe distance.

The latest test occurred near San Nicholas Island, off the coast of Central California in the Pacific Ocean test range. The laser was mounted onto the deck of the Navy's self-defense test ship, former USS 'Paul Foster'.

"This is the first time a HEL, at these power levels, has been put on a navy ship, powered from that ship and used to defeat a target at-range in a maritime environment," said Peter Morrison, Programme Officer for ONR's MLD.

In just slightly more than two-and-a-half years, the MLD has gone from contract award to demonstrating a navy ship defensive capability, he said.

"We are learning a tonne from this programme – how to integrate and work with directed energy weapons," Morrison said. "All test results are extremely valuable regardless of the outcome."

Additionally, the navy accomplished several other benchmarks, including integrating MLD with a ship's radar and navigation system and firing an electric laser weapon from a moving platform at-sea in a humid environment. Other tests of solid state lasers for the navy have been conducted from land-based positions.

But while April's MLD test proves the ability to use a scalable laser to thwart small vessels at range, the technology will not replace traditional weapon systems, Chief of Naval Research, Rear Adm. Nevin Carr added.

"From a science and technology point of view, the marriage of directed energy and kinetic energy weapon systems opens up a new level of deterrence into scalable options for the commander. This test provides an important data point as we move toward putting directed energy on warships. There is still much work to do to make sure it's done safely and efficiently," the admiral said.