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Old 08-22-2012, 12:20 AM #17
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Default Re: Focussing many diodes

well DTR sells a box of knife edging mirrors for cheap, i bought a box. the problem is its not an option to make a rifle...


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Old 08-22-2012, 12:21 AM #18
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Default Re: Focussing many diodes

Eh the rifle is sort of a joke. I just felt like drawing it. I just wanna focus a bunch of beams into one beam. Massive red laser. Or blue. I really need to make a 445.
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Old 08-22-2012, 12:25 AM #19
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Default Re: Focussing many diodes

haha well maybe, but i have been thinking about it. for military use. a Nd flash pump can easily do alot of damage itself. but an array...now if only i had won that lotto drawing..haha
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Old 08-22-2012, 12:26 AM #20
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Default Re: Focussing many diodes

Lol, basicly what we need is that mystery lens.
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Old 08-22-2012, 12:27 AM #21
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Default Re: Focussing many diodes

Yeah, like that pulse laser gun that I saw on here once. Imagine like fifteen of those, each firing a megawatt pulse, all focused onto one point. Fifteen megawatts onto a point.
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Old 08-22-2012, 04:37 PM #22
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Default Re: Focussing many diodes

shine a bunch of lasers at one point? easy. combine them into one monochromatic gaussian beam? I'm gonna say impossible or physically impossible.
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Old 08-22-2012, 06:13 PM #23
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Default Re: Focussing many diodes

Well strictly sneaking for diodes I had an idea, with flash cavities, it would just be getting them close enough together.

So I think op posted something about a cylinder, well what if a coated cylinder was used, maybe shooting....ah new idea. Screw focusing all the diodes, why not make a holder for all the diodes, decanned and just raw light spraying into the cavity, and then focused down. Then its essentially a multimode multi diode cavity.

Maybe that's what was done with that two diode host that puts out like 3W?
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Old 08-22-2012, 07:01 PM #24
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Default Re: Focussing many diodes

I think that one uses a PBS cube if I'm not mistaken.
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Old 09-18-2012, 01:30 AM #25
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Default Re: Focussing many diodes

Quote:
Originally Posted by flare09 View Post
Well strictly sneaking for diodes I had an idea, with flash cavities, it would just be getting them close enough together.

So I think op posted something about a cylinder, well what if a coated cylinder was used, maybe shooting....ah new idea. Screw focusing all the diodes, why not make a holder for all the diodes, decanned and just raw light spraying into the cavity, and then focused down. Then its essentially a multimode multi diode cavity.

Maybe that's what was done with that two diode host that puts out like 3W?
The 3w two diode build combined two 9mm 445nm diodes. Building a laser rifle sounds great and all, but hopefully you have a good friend that will follow behind you carrying the battery pack, cuz it's gonna look like this:

<img>http://collider.com/wp-content/uploads/ghostbusters-movie-image-black-white-01.jpg</img>

Seems like a read on here somewhere that you can only combine once or twice, because of the beam polarization, maybe?

Either way, an array of laser diodes could be focused to a single point
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Old 09-18-2012, 01:32 AM #26
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Default Re: Focussing many diodes

Well you can use high discharge Lipo batteries =P

My rc car under acceleration discharges around 8-900 watts from the main battery.
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