Old 10-19-2008, 08:19 PM #1
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Default my first red laser project-read please!

Hi!
*I have a dvd-rw model nec ND-2500A.Its a 8x dvd writer.i want to ask if anyone knows the current i give to this diode without to damage it and also how many mw i can take out from it.
Thanks.

i attach a photo.sure is this diode?
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Old 10-19-2008, 08:22 PM #2
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Default Re: red laser project

You won't get much from an 8X 100mW tops is my best guess. Dunno what current though ...

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Old 10-19-2008, 10:50 PM #3
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Default Re: red laser project

I would say start a 50mA and then slightly increase the current until your able to light a match from close range. It's not very effective, but without an LPM, or any data charts it's going to be hard to give a reasonable estimate.
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Old 10-20-2008, 02:14 PM #4
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Default Re: red laser project

i need a special circuit to suply the diode?a resistant mabe its not enough? :-?
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Old 10-20-2008, 03:09 PM #5
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Default Re: red laser project

Quote:
Originally Posted by geo-r
i need a special circuit to suply the diode?a resistant mabe its not enough? :-?
It would be prefered, yes. :P
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Old 10-20-2008, 07:07 PM #6
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Default Re: red laser project

Quote:
Originally Posted by geo-r
i need a special circuit to suply the diode?a resistant mabe its not enough? :-?
yes - flexdrive FTW
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Old 10-20-2008, 07:14 PM #7
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Default Re: red laser project

Sorry to say that, but it sucks that no-one seems to read the great FAQs that are around here...
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Old 10-22-2008, 01:36 PM #8
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Default Re: red laser project

Quote:
Originally Posted by ArRaY
Sorry to say that, but it sucks that no-one seems to read the great FAQs that are around here...
thanks.where can i find the great FAQs?any info about ma for the diode and circuit and mw?
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Old 10-24-2008, 03:21 PM #9
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Default Re: my first red laser project-read please!

anyone know the safe ma to supply this diode?
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Old 10-25-2008, 10:50 PM #10
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Default Re: my first red laser project-read please!

i don't think anyone really knows....this being your first attempt at building a laser, you'll prob kill the diode anyways, when that happens, run over to stonetek and buy a 16x diode and run it at 250mA.
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Old 10-25-2008, 10:54 PM #11
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Default Re: my first red laser project-read please!

Your probably going to have to buy a Flex drive and find a good current yourself, the laser community usually builds lasers with 20X diodes. So you may just be better off buying a 16X diode, there is an abundance of knowledge on them here.
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Old 10-26-2008, 11:25 PM #12
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Default Re: my first red laser project-read please!

Around 50mw at 2.9v turned mine into an LED. I think its an LED now will post pics and stuff in a new post
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Old 10-28-2008, 03:53 PM #13
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Default Re: my first red laser project-read please!

Quote:
Originally Posted by jonrobertd
Around 50mw at 2.9v turned mine into an LED. I think its an LED now will post pics and stuff in a new post
I use a resistant and i give 140ma to the diode for a few seconds and is still work but it looks a bit weak.I dont know how many mw pump out!
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Old 11-03-2008, 11:18 AM #14
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Default Re: my first red laser project-read please!

anyone know what resistant to use at 6v to have about 250mw?
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