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World record-setting 60kW laser delivered to U.S. Army

24 March 2017

Lockheed Martin has completed the design, development and demonstration of a 60kW class beam combined fibre laser for the U.S. Army.

A rendering of a truck mounted 60 kW laser weapon system for tactical U.S. Army vehicles. (Credit: Lockheed Martin)

In testing earlier this month, the Lockheed Martin laser produced a single beam of 58kW, representing a world record for a laser of this type. The Lockheed Martin team met all contractual deliverables for the laser system and is preparing to ship it to the US Army Space and Missile Defence Command/Army Forces Strategic Command in Huntsville, Ala.

"Delivery of this laser represents an important milestone along the path to fielding a practical laser weapon system," said Paula Hartley, vice president, Owego, New York general manager and Advanced Product Solutions within Lockheed Martin's Cyber, Ships & Advanced Technologies line of business. "This milestone could not have been achieved without close partnership between the U.S. Army and Lockheed Martin; we are pleased to be able to deliver this system for their further integration and evaluation."

Lockheed Martin's laser is a beam combined fibre laser, meaning it brings together individual lasers, generated through fibre optics, to generate a single, intense laser beam. This allows for a scalable laser system that can be made more powerful by adding more fibre laser subunits. The laser is based on a design developed under the Department of Defence’s Robust Electric Laser Initiative Program, and further developed through investments by Lockheed Martin and the U.S. Army into a 60kW class system.

"The inherent scalability of this beam combined laser system has allowed us to build the first 60kW class fibre laser for the U.S. Army," said Robert Afzal, Ph.D., senior fellow for Laser and Sensor Systems. "We have shown that a powerful directed energy laser is now sufficiently light-weight, low volume and reliable enough to be deployed on tactical vehicles for defensive applications on land, at sea and in the air."

According to Afzal, the Lockheed Martin team created a laser beam that was near "diffraction-limited," meaning it was close to the physical limits for focusing energy toward a single, small spot. The laser system also proved to be highly efficient in testing, capable of translating more than 43 percent of the electricity that powered it directly into the actual laser beam it emitted.

Laser weapons provide a complement to traditional kinetic weapons in the battlefield. In the future, they will offer reliable protection against threats such as swarms of drones or large numbers of rockets and mortars. In 2015, the company used a 30kW fibre laser weapon, known as ATHENA, to disable a truck from a mile away.


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