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FrozenGate by Avery

1-2W CO2 laser

Yeah, its because the human skin absorbs almost 100% of co2 that im trying to use it, other way i would use a diode(that still good, but not so good like a co2 one) and we cante expande the beam, on the opposite, we are trying to cable it and let the beam a few cm of the human body, so we wont lose much energy reflected...

I think a 10W would be good, if we use the power supply, but my teacher don't...
He want to be secure.. but it's really hard to find 1-2W :'(
 





With 1W in mind, it sounds more like an obscenely over-priced hand warmer.

Murudai said:
But don't you need a certain amount of juice being pumped in to a CO2 before it'll work at all?
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If by juice you mean voltage, that is correct. The current AT (or near) that voltage is what determines output, however. The same is true of diodes. Ever try running a violet diode directly from one AA?

Murudai said:
surely the amount of juice you'd need to put in would be enough to kick it up to a decent output.
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only for diode arrays and argons as far as I know. If and when I get a replacement tube and a thermal based LPM, I'll test how low a 60W tube will go.

Nivanio said:
But is kind dangerous to point a 10W at someone
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With the proper modifications, it wouldn't BE a 10W system.

Diachi said:
Its kind of dangerous to point a 1-2W at someone aswell :-X
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Kind of. Keep in mind this wavelength doesn't penetrate the cornea to begin with. In any case, it's surely safer than 10W.

Nivanio said:
but if something fails, its better to be hit with a 1W than a 10W
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If it fails, you hired the wrong engineer. It's really not difficult.
 
I AM the engineer, well, a student at least, but my teacher is a biomedic engineer, and we are doing research for evoked potential..
And if theres a 1W co2 laser, even if its more expensive, we would buy it.. the university is paying...

We are working with humans, we cant be too cautious...
 
Biomedical stuff? Why, I do that at University as well :) Though my focus is on microbiology and pathogens, not frying people, lol

What kind of research are you doing?
 
I just joined the lab, so i don't know the medical part of this project, we are in the begin of it, so the new guy(me) is just searching information about lasers, laser evoked potential, so we can use it do a test for multiple sclerosis and such...

and i would join the part of control system, so i would make the system to lower the output power.. so we dont fry people xD
 
You just don't understand, do you?

With the proper modifications, you can make a 1W system out of a 10W tube.
 
Yes, i understand...
But i don't want it to run at 1W

I want a 1W to run even lower... I could get a 10W and try to run it at 10-100mW
But that would be not much stable...

So i would like to know where i can buy one with 1W, do the proper modifications and get a 10mW system out of a 1W tube...

Anyone know where can i buy one?
 
If you're going down that low you could probably use a diode.

But I'm guessing the wavelength of the CO2 is important... hmm...
 
Nivanio said:
I want a 1W to run even lower... I could get a 10W and try to run it at 10-100mW
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Jesus crutches! why didn't you say so? yes, I'd use a diode if I were you. Diodes DO come in that (or similar) wavelengths although It'd probably far more expensive than an attenuated 10W system which is another option, by the way.
 
Not saying I have very much experience with lasers but here is a thought. I know it might not be the most efficient but it may be cheaper. Get say a 10 watt operating at 1 watt. Then split the beam and use just a small fraction of it. like expand it then use a small dot of the expanded beam. Like pass it through a washer shaped ring using just the small center area you calculate to be the power you will need.
like im guessing 1/100 of the beam area would be 1/100 of of a watt or about 10mw.
 
Man read the date of the last post before you comment, it was over 6 years ago!
 
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