backtop


Print 58 comment(s) - last by YashBudini.. on Jan 27 at 7:55 PM


Navy laser program moves ahead
Laser program is under review

Lasers hold a great deal of promise for the battlefield – they are able to strike at the speed of light giving a better chance of hitting a fast moving target on short notice on the battlefield.

The U.S. Navy has been working on a laser system that will eventually be mounted on ships to replace the rapid firing cannons that are designed to shoot down missiles and other threats at close range. A laser system to replace the rapid-fire guns has been in development by the Navy since the 1980's reports Military.com, and the laser system has hit a new milestone.

The goal of the Navy missile program is to create a laser with one megawatt of power. Last month, the research teams working on the project at the Los Alamos National Lab demonstrated that they could create lasers with the power needed for the Navy. A preliminary review of the program began last week and is being conducted by the Office of Naval Research.

Dinh Nguyen, senior project leader for the Free Electron Laser program said, "Until now, we didn't have the evidence to support our models."

The research team used a new injector design to shoot electrons through a series of magnetic fields and was able to generate the power needed for a viable weapon. The laser program is called the free-electron laser of FEL.

Office of Naval Research program manager Quentin Saulter said, "The FEL is expected to provide future U.S. Naval forces with a near-instantaneous laser ship defense in any maritime environment throughout the world."

The laser began as a 14-kilowatt prototype, and the research team then moved on to producing a 100-kilowatt laser. The test with the new injector has put the research team 9-months ahead of its 2011 testing schedule.

The U.S. Air force is also working on laser systems that will be mounted inside aircraft to destroy missiles in flight. The Air Force ended development of an airborne chemical laser early last year in favor of solid-state lasers.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Seems pretty easy to defeat...
By jfelano on 1/24/2011 12:50:28 PM , Rating: -1
I don't see how this would work. All you would have to do is put a mirror finish on missiles and the laser would reflect off of it right?




RE: Seems pretty easy to defeat...
By acer905 on 1/24/2011 12:59:04 PM , Rating: 2
Try shining a handheld laser pointer at a mirror. Sure, you will see it on the wall it reflects on, but there will also be a faint dot on the mirror. Nothing is perfect, and with 1 MW of energy, you would need perfect to be safe.


RE: Seems pretty easy to defeat...
By cjohnson2136 on 1/24/2011 1:17:51 PM , Rating: 2
Plus you would have to keep the mirrors perfectly clean to have it be more effective and a missle flying through air at a few hundred miles per hour will not stay clean.


RE: Seems pretty easy to defeat...
By 3DoubleD on 1/24/2011 1:59:10 PM , Rating: 2
That is correct. Even on a perfectly reflective surface (if such a thing existed), a particle of dust or dirt would super heat and destroy the reflective layer.

This has implication not only for defense, but also for the battleship. The lens on the laser would also have to be 100% dust free or risk catastrophic failure. This is an difficult task to achieve on an optical bench in a cleanroom. This would be enormously difficult to achieve in the real, dirty world.

Other considerations may include the safety of the battleship crew or nearby bystanders. At 1 MW, simple scattering from the atmosphere could be dangerous to unprotected crew members. Weather (rain, snow, fog) or battle conditions (smoke, dust, exhaust, air borne debris) may also significantly hamper the operation of this laser, even to the point where the laser may accidentally inflict damage to the battleship itself.

A 1 MW laser puts extraordinary amount of power in a very slowly diverging beam. At all times the battleship crew would need to be conscious of any reflections or scattering. This would be an extremely difficult weapon to wield.


RE: Seems pretty easy to defeat...
By FaaR on 1/24/2011 8:59:13 PM , Rating: 2
It's not just their eyes (which can be protected by using goggles); I'm thinking the crew might get some involuntary deep-skin suntanning from backscatter when shooting off such high-powered lasers.

I'm not a doctor or a physicist so I don't know the risk of this actually happening, but it wouldn't do at all if there's any chance at all of putting the ship's own crew in the infirmary when firing this weapon. I suppose rad-suits are the order of the day, in addition to eye-goggles... :D


RE: Seems pretty easy to defeat...
By SlyNine on 1/25/2011 12:44:03 AM , Rating: 2
I'll take my own guess.

I'd imagine that only in very unique atmospheric conditions would this be a problem. We've seen kilowatt plus lasers fired and no scattering was even noticed, for the scattering effect to actually be deadly I'm guessing were not even close.

Honestly this sounds about like the myth that going 60MPH plus will kill you.


By YashBudini on 1/27/2011 7:55:56 PM , Rating: 1
quote:
I don't see how this would work. All you would have to do is put a mirror finish on missiles and the laser would reflect off of it right?


It worked well enough on Jonny Quest.

[/sarcasm]


"We shipped it on Saturday. Then on Sunday, we rested." -- Steve Jobs on the iPad launch

Related Articles













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki