Laser Weapon System

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Photo of the Laser Weapon System (LaWS) – KTM prototype

The Laser Weapon System or LaWS is a directed-energy weapon developed by the United States Navy. The weapon is to be installed on the USS Ponce for field testing in 2014.[1][2][3]


The intended use of the LaWS is ship-defense against drones or small-boat attackers (whether suicidal or not); the LaWS at present is not designed to engage incoming missiles, large aircraft, ships, or submerged objects. LaWS utilizes a solid-state infrared beam which can be tuned to high output to destroy the target or low output to warn or cripple the sensors of a target. Among the advantages of this device versus projectile weapons is the low cost per shot, as each firing of the weapon requires only the minimal cost of generating the energetic pulse; by contrast, projectile weapons must be designed, handled, and transported, take up storage space, and require maintenance.


In 2010, Kratos Defense & Security Solutions was awarded an 11-million-dollar contract to develop LaWS in support of the Naval Surface Warfare Center (NSWC) for the U.S. Navy’s Directed Energy and Electric Weapon Systems (DE&EWS) program.[4] The May 2012 NSWC test used a CIWS control system to enable the beam director to track the UAV target.[5]

The LaWS will be installed on the USS Ponce in summer 2014 for a 12-month trial deployment. The Navy spent about $40 million over the past six years on research, development, and testing of the laser weapon. It will be directed to targets by the Phalanx CIWS radar. If tests go well, the Navy could deploy a laser weapon operationally between 2017 and 2021 with an effective range of 1 mi (1.6 km; 0.87 nmi). The exact level of power the LaWS will use is unknown but estimated between 15-50 kW for engaging small aircraft and high-speed boats. Directed-energy weapons are being pursued for economic reasons, as they can be fired for as little as one dollar per shot, while conventional gun rounds and missiles can cost thousands of dollars each. The Navy has a history of testing energy weapons, including megawatt chemical lasers in the 1980s. Their chemicals were found to be too hazardous for shipboard use, so they turned to less powerful fiber solid-state lasers. Other types can include slab solid state and free electron lasers.[6] The LaWS benefitted from commercial laser developments, with the system basically being six welding lasers "strapped together" that, although don't become a single beam, all converge on the target at the same time. It generates 33 kW in testing, with follow-on deployable weapons generating 60-100 kW mounted on a Littoral Combat Ship or Arleigh Burke-class destroyer to destroy fast-attack boats, drones, manned aircraft, and anti-ship cruise missiles out to a few miles.[7]


The Office of Naval Research (ONR) is developing a laser weapon similar to the LaWS for use on ground vehicles for the U.S. Marine Corps as part of the Ground-Based Air Defense Directed Energy On-the-Move (GBAD) program. Like the naval LaWS, the ground-based system is meant to be an efficient way to protect against UAVs and supersonic missiles. The ONR is adapting the system to be installed on a Humvee or the Joint Light Tactical Vehicle. Tests will be conducted in late 2014 with 10 kW of power, with an increase to 30 kW by 2016.[8]

See also[edit]


  1. ^ Luis Martinez (9 Apr 2013). "Navy's New Laser Weapon Blasts Bad Guys From Air, Sea". ABC. Retrieved 9 April 2013. 
  2. ^ Jonathan Skillings (8 Apr 2013). "U.S. Navy sees shipboard laser weapon coming soon". CNET. Retrieved 9 April 2013. 
  3. ^ "US to deploy new laser weapon to Persian Gulf". Russia Today. 9 April 2013. Retrieved 9 April 2013. 
  4. ^ "Kratos Awarded $11 Million Contract to Support the Navy Directed Energy and Electric Weapon Systems and Total Ship Training System Program Offices". GlobeNewswire. 29 July 2010. Retrieved 9 April 2013. 
  5. ^ "NEWS - LAWS". Retrieved 2013-04-12. 
  6. ^ Navy’s Laser Gun Nears Critical Test -, 29 January 2014
  7. ^ Laser Weapons: Lower Expectations, Higher Threats -, 19 May 2014
  8. ^ US Navy developing laser weapons for ground vehicles -, 14 June 2014

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