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Old 09-07-2010, 12:13 AM   #1
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Default UM develops lasers to defend helicopters against missile attacks



Researchers at the University of Michigan are developing laser systems for protecting military helicopters from heat-seeking missiles. The lasers wouldn’t shoot down the missiles, but would instead jam their sensors, essentially blinding them. This isn’t the first time that laser systems have been used for this purpose, but the creators of this system claim that it is better suited to helicopters than anything that has come before.

The UM system detects incoming missiles, then shoots at them with a mid-infrared supercontinuum laser. While most lasers emit light of just one wavelength, supercontinuums pack a broad range of wavelengths into their focused beam. Although such lasers typically emit a beam of visible light, due to the fact that this is a mid-infrared supercontinuum, its beam isn’t seen but is felt as heat. The resulting broad spectrum infrared beam mimics the electromagnetic signature of a helicopter engine, and causes the missile to lose track of where the actual helicopter is. It is said to be effective up to a distance of 2.9 km (1.8 miles).

One of the big strengths of this system, according to its makers, is its simple design and off-the-shelf fiber optic parts. “The laser-based infrared countermeasures in use now for some aircraft have 84 pieces of moving optics. They couldn't withstand the shake, rattle and roll of helicopters,” said Mohammed Islam, a professor in the Department of Electrical Engineering and Computer Science. “We've used good, old-fashioned stuff from your telephone network to build a laser that has no moving parts.”

Islam’s claims may soon be put to the test – his UM spin-off company, Omni Sciences, has recently received US$1 million in grants from the US Army and the Defense Advanced Research Projects Agency (DARPA) to build a second-generation prototype.

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UM develops lasers to defend helicopters against missile attacks
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Old 09-07-2010, 12:28 AM   #2
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Default Re: UM develops lasers to defend helicopters against missile attacks

I bet we could build something even better for $1,000,000
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Old 09-07-2010, 01:01 AM   #3
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Default Re: UM develops lasers to defend helicopters against missile attacks

1 million for a laser...
I can only imagine.
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Old 09-07-2010, 01:01 AM   #4
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Default Re: UM develops lasers to defend helicopters against missile attacks

Doubtful. We could probably handle the laser, but there's more to it than that. Specifically, the missile detection and tracking system to point said laser in the right direction and keep it there.
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Old 09-07-2010, 01:03 AM   #5
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Default Re: UM develops lasers to defend helicopters against missile attacks

The real question is....

can it light matches?
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Old 09-07-2010, 01:19 AM   #6
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Default Re: UM develops lasers to defend helicopters against missile attacks

Quote:
Originally Posted by mfo View Post
The real question is....

can it light matches?
ROFL!

If I had 1 million dollars to spend on a laser.....so many ideas.....but I don't
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Old 09-07-2010, 03:08 AM   #7
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Default Re: UM develops lasers to defend helicopters against missile attacks

It shouldn't be that hard for them to come up with a system. Such systems already exist on other aircraft.
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