Tuesday, April 9, 2013

Navy's New Laser Weapon Blasts Bad Guys From Air, Sea


No longer the fantasy weapon of tomorrow, the U.S. Navy is set to field a powerful laser that can protect its ships by blasting targets with high-intensity light beams.
Early next year the Navy will place a laser weapon aboard a ship in the Persian Gulf where it could be used to fend off approaching unmanned aerial vehicles or speedboats.
The Navy calls its futuristic weapon LAWS, which stands for the Laser Weapon System. What looks like a small telescope is actually a weapon that can track a moving target and fire a steady laser beam strong enough to burn a hole through steel.
A Navy video of testing conducted last summer off the coast of California shows how a laser beam fired from a Navy destroyer was able to set aflame an approaching UAV or drone, sending it crashing into the ocean.
"There was not a single miss" during the testing, said Rear Admiral Matthew Klunder, chief of Naval Research. The laser was three for three in bringing down an approaching unmanned aerial vehicle and 12 for 12 when previous tests are factored in.
But don't expect in that video to see the firing of colored laser bursts that Hollywood has used for its futuristic laser guns. The Navy's laser ray is not visible to the naked eye because it is in the infrared spectrum.
Many of the details about how the laser works remain secret, such as how far its beam can travel, how powerful it is or how much power is used to generate it.
But Navy officials have provided a few unclassified details. For example, the laser is designed to be a "plug and play" system that integrates into a ship's existing targeting technologies and power grids. Those factors make it a surprisingly cheap weapon.
Klunder says each pulse of energy from the laser "costs under a dollar" and it can be used against weapons systems that are significantly more expensive. The Navy says it has spent about $40 million over the past six years in developing the weapon.
 
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