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IR laser form DVD drive

Mato92

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Hi,
I am new to this forum and new to lasers as well. I have made 200mW red laser from DVD drive and I have used driver schematics from this forum. Now I need your help with something I didn't found on this forum.
I have an IR diode, but I don't know if there is the same pinout as on the red one and if I can use the same driver.
It has some code written on it's can. It says "SI625H19C". I couldn't find anything about it. DVD drive model was LG GSA-4167B.
So is there the same pinout as on a red laser diode? And can I use the same driver circuit?
Thank you for answers. Sorry for my English, I'm just learning. :)
 





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The IR diode from DVD burners aren't really good for anything pointer related as they are probably very low power :(
 

.3lite

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It was also a 48x CD-Burner so that ir laser diode is about 100mW+.
 

Mato92

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I have read that if I point it at my hand, it can sting my skin (in some video comment on YouTube). Is that true?
 
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.3lite

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if you are black, I mean black skin, otherwise no.
 
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This post would have been better suited to the "Infrared/Other Colors" board, rather than the red lasers board.

.3lite: That's a very offensive word.
 

.3lite

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I didn't mean it on purpose, I'm not rasist, I've just changed it.
 
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Mato92

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I'm caucasian. I know that most of lasers don't burn white colored objects or a skin. I don't know why I thought that IR will be something special... Maybe I just don't have to believe everything I read. :yh:
 
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The IR diodes in DVD burners are not very fun to look at, but they are quite powerful and will easily burn. Typically they produce ~200mW@~250mA of input current.
 
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Typically they produce ~200mW@~250mA of input current
mmmh i guess it's lesser than 200 mw at 250 mA ( could they really reach this current ? it's high for me ) according to Stenkat's Ir graph (from daguin or mike don't remenber)
808ui0.jpg
 
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Truthfully, I've never used one myself so all I can do is basically quote what others have said in the past. That graph may be a bit more accurate. The Senkat diode is an 808nm, whereas the IR from a DVD burner is 780, so they are different diodes. While I have used the Senkat 808, I have no firsthand experience with 780nm diodes.
 
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I got a high powered ir laser out of the lpc-815 20x dvd burner sled and I was able to run it at 420 ma, though it just burned out a month after building it, it lit matches very fast, even faster than the red laser in that sled.
 

Mato92

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This diode works very good at 110 mW. It doesn't overheat and it lights matches. I found out because I just accidentally destroyed my 650 nm diode, so I tried this one.
 




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