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Old 08-03-2010, 08:28 PM #33
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Default Re: Theoretical Maximum Power for Portable Laser

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Originally Posted by Arayan View Post
It's true but maybe the thread's author wanted to discuss only about continous wawes
I meant a continous handheld laser powered by one or two AA sized batteries.

But it turned out to be an interesting discussion, I'm glad.


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Old 08-04-2010, 01:01 AM #34
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Default Re: Theoretical Maximum Power for Portable Laser

Let's assume a AA battery can provide 2A (which it probably can't... I don't know). The most efficient laser is an IR diode @ about 50%, so 2W is about the max you can get from 2XAA as far as I can see.
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Old 08-04-2010, 04:27 AM #35
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Default Re: Theoretical Maximum Power for Portable Laser

20w is less pew pew and more BANG BANG. but on a more sciency subject. couldnt you have multiple layers of metal in heatsinks such as aluminum copper then silver (but not specifically in that order) to cool something more powerful.
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Old 08-04-2010, 04:39 PM #36
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Default Re: Theoretical Maximum Power for Portable Laser

One thing to think about, capacitors dont have to mean pulsed. Or rather, the pulse can be longer than what one thinks of as a pulse to the point where it seems more like a duty cycle. Heck, imagine a survival laser that charges all day from solar power and gives you one 5 second shot to kill an animal. Better not miss
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Old 08-12-2010, 06:08 PM #37
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Default Re: Theoretical Maximum Power for Portable Laser

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Originally Posted by Tech_Junkie View Post
Guess it would eventually look like this...

but does it play showtunes?

You can get 18650-sized batteries that are capable of continuous 30A discharge, btw. Backpack isn't necessary unless you want longer runtime
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