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ArcticMyst Security by Avery

sony 52x cd burner






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It's probably somewhere between 80-140mW of 780nm near-IR output. I wouldn't recommend it unless you're familiar with lasers at this end of the spectrum, but it is still a cheap laser.
What little output you see is minimal as compared to what it is really pumping out, so be careful when you look at the spot even on a wall.
 
Y

yew.sir-name

Guest
I know it'll be ir, but I thought as your sony 16x dvd diodes are 250mw the 52x cd burners would be *does the math* about a watt or so. I've got reds, greens, a blu ray that needs to be stripped (not touching it till I know for sure what to do with it) and I thought to myself a high powerd ir would be good to add to my collection. may just get a cheapo green and break it for parts, should be easier.
 
S

SenKat

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YSN - I would agree to a point about stripping it for IR....you will end up with a horribly divergent piece of crap when you are done removing hte crystals, etc :( Check with Disma, I think....SOMEONE just got some hella-good collimation on IR and filmed it - I cannot see the AVI extensions on this laptop without loading more crap, so I gave up on that part, but he has a video of his latest accomplishment. And IR can be fun if you play safely with it !
 
Y

yew.sir-name

Guest
I just watched it and I'm on an old as jesus laptop running win98 :p . It's an impressive beam, I think stripping a green would be the way to go if that's what he done. I'll keep the burner for burning cds.
 
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yew.sir-name said:
I know it'll be ir, but I thought as your sony 16x dvd diodes are 250mw the 52x cd burners would be *does the math* about a watt or so.

There's one flaw with your math there. 1x for a DVD drive is 1350KBps while 1x for a CD drive is a humble 150KBps. That would put CD@52x at 7800KBps and DVD@16x at 21600. Assuming the same power is needed to create a byte for either format, a 52xCD recorder diode would have only 36% the power of a 16xDVD recorder diode. This puts the figure at around 90mW.

Aixiz sells 80mW 780nM modules for a pricey $15 if I remember correctly. So I'd say paying $17 for the diode alone isn't the best of choices.
 

Benm

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I guess these diodes come as a freebee when you extract the red diode from a DVD writer... most of those will toast a CD at 48x or similar speeds, so you could salvage the IR diode too.

I think most people won't bother though, since it's hardly visible and not as powerful as the red diode.. this makes it less fun for burning experiments, and more dangerous because it's hard to see what you're doing.
 
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i think if you want an IR laser, i would look into grabbing one off ebay since much higher powers are available for not much money
 
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Now when do we get to see 52x DVD Burners becoming available? :) That would have a few extra mW to spare! :)
 

Benm

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52x DVD writers will probably not make it to the market... it's hard to achieve such power in a single mode laser, and the rotational speed of the disk is also a problem. Even with '52x' CD drivers you're usually being fooled - the 52x is only achieved on the outer edge of the disk, since it would have to spin too fast to do that on the center.

i think if you want an IR laser, i would look into grabbing one off ebay since much higher powers are available for not much money

Be wary though... many high power IR diodes are actually multimode. This is fine for pumping in a DPSS, but not very convenient if you want to create a collimated output beam. Ofcourse they -can- be focused to a rather small dot at a preset distance, so you you must set something on fire, they are the way to go ;)
 

disma

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I didnt convert a green, I bought a 2watt to-3 diode from snoctony on ebay. it was $100.00 though, but a lot of power for $100.00, and takes 2.8 amps to run at full power, im running mine at 2.4 amps though. :)

Max
 

XGUY

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Benm said:
52x DVD writers will probably not make it to the market... it's hard to achieve such power in a single mode laser, (...)

Does that mean that every dvd/cd burner diode is single mode?
 

Benm

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That'd be a safe assumption. When reading or writing a disc, spots in the size of the wavelength are to be targetted. I doubt that can be achieved with a multimode laser, at least not using ordinary optics like the lenses in a dvd player.
 




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