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Old 03-16-2012, 05:08 PM #1
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Question Help with my green laser (200mw)

Hi i am new at this forum. My name is Roberto and i would like some help.

I just bought a Uniquefire green laser 200mw from this website (Laser Verde Uniquefire 200mw 532nm 1000m ajustável Foco Set Pen (Prata) - Mania Digital), and i disassembled to see how it was inside.
I turn the screw (As shown in the picture) >



When i turned it on, it flashed twice and disappeared the green beam, now when i turn it on again, it appears a low red light (As shown in the picture) >


Can someone tell what happened? How do i solve this?

Thanks for the help
(Sorry for my bad english)


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Last edited by Robertinho; 03-16-2012 at 05:11 PM.
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Old 03-16-2012, 05:16 PM #2
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Default Re: Help with my green laser (200mw)

you should not take apart a green laser, you will need to realign your lens and crystal, good luck I will post you a link with how Do it Yourself Complete Green DPSS with O-like Crystals good luck this! or now that I can see the pics, you zombied your IR laser or, damaged the driver, you should not pot mod a dpss laser just get the one you want to start with, take a pic of the red dot with a pc cam, unless you using one, most don't have IR filters. and don't look into it at all, it could be a 2W ir diode, not good to get hit in the eye with and could lead to blindness in a hurry.

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Old 03-16-2012, 05:34 PM #3
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Default Re: Help with my green laser (200mw)

You killed your laser's pump diode.

Edit: Maybe it's still alive but below lasing threshold.

Try turning the potentiometer (the "screw") the other direction. If I recall correctly, with these laser modules, counterclockwise increases power and clockwise reduces it.

Last edited by RA_pierce; 03-16-2012 at 05:36 PM.
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Old 03-16-2012, 05:36 PM #4
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Default Re: Help with my green laser (200mw)

You probably turned the potentiometer too much and induced too much current to the diode and burned it.
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Old 03-16-2012, 05:53 PM #5
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Default Re: Help with my green laser (200mw)

Ok, i will try to turn the other way, i hope that still works, or i will buy a need diode and replace it, thanks !!!
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