How once-elusive laser weapons suddenly became a reality

Re:How once-elusive laser weapons suddenly became a reality by jccooper on Wednesday November 25, 2020 @11:04PM (#25216706)

So one of the other problems with high power lasers is cooling the lasing mechanism. A recent novel solution to that is to have a liquid with the same refractive index and to circulate it (with no turbulence) through passages within the lasing mechanism. That way it can be cooled very thoroughly without interfering with the light generation. (Probably the coolant doesn't contribute, but maybe it does.)

Seems this can do on order of 5 kw/kw output.

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Re:How once-elusive laser weapons suddenly became a reality by jasonwatkinspdx on Wednesday November 25, 2020 @11:45PM (#25216878)

Fiber lasers are relatively easy to cool due to their high surface area. A 20kw industrial one is about a cubic meter box and just air cooled.

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Re:How once-elusive laser weapons suddenly became a reality by bufferoverflow on Wednesday November 25, 2020 @11:22PM (#25216776)

5kw output for 1kw input?

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Re:How once-elusive laser weapons suddenly became a reality by jccooper on Thursday November 26, 2020 @03:48PM (#25223412)

Sorry, typo. Should be kg/kw

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