Old 05-21-2008, 05:54 AM #1
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Default DIY Greenie?

Has anyone ever made a DIY greenie? What i am thinking:

1. Buy a 532nm green laser module from AixiZ
2. Pull out the weak 808nm IR diode along w/ the stock driver
3. Build a new driver, buy a 200mW 808nm diode, solder it together, and install in the housing with the pre-alligned crystal.
4. Now you have a powerful module
5. Install in Dorcy Jr. and test it out.

Anyone support me? I have had good ideas in the past...


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Old 05-21-2008, 06:15 AM #2
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Default Re: DIY Greenie?

Quote:
Originally Posted by Spyderz20x6
Anyone support me?
Uh, no.

This won't work. Cheap lasers have cheap crystals. Pumping more IR into the crystals won't make much difference. Otherwise, high power greens would be cheaper.

It's the crystals that make them expensive, not the IR diode. Better quality crystals, better laser.
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Old 05-21-2008, 06:17 AM #3
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Default Re: DIY Greenie?

Ok, but i know someone who made a DIY 90mW with the crystal from a 5mW greenie.
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Old 05-21-2008, 06:18 AM #4
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Default Re: DIY Greenie?

DIY greens have been made around here before. Please do some reading. http://www.laserpointerforums.com/fo...num=1209525651

Murudai made some very good points also.
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Old 05-21-2008, 09:43 PM #5
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Default Re: DIY Greenie?

Yes, i knew that. The crystal will get oversaturated. I just thought this because someone DID make a 90mW greenie from a 5mW dead greenie. That is why i was concerned if it would work.
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Old 05-22-2008, 09:25 AM #6
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Default Re: DIY Greenie?

were can you buy better crystals for a green laser that can go up to 200mW and would a 200mW IR diode out a dx true 30 get 100mW out the crystals
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Old 05-22-2008, 10:20 AM #7
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Default Re: DIY Greenie?

Quote:
Originally Posted by Spyderz20x6
Yes, i knew that. The crystal will get oversaturated. I just thought this because someone DID make a 90mW greenie from a 5mW dead greenie. That is why i was concerned if it would work.
Maybe it was a leadlight.I'm just not seeing the newwish module reach 90mW, it probably has tiny crystals. :-/

Quote:
were can you buy better crystals for a green laser that can go up to 200mW and would a 200mW IR diode out a dx true 30 get 100mW out the crystals
eBay, or ripped out of another greenie. 200mW IR to 100mW green, no.We're talking about a ~20% efficiencly tops.that would be more like 40mW.
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Old 05-22-2008, 10:54 AM #8
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Default Re: DIY Greenie?

I dont trust ebay and what is the point of buy a 200mW green laser to take the crystals out to make a 100mW green laser?
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Old 05-22-2008, 11:27 AM #9
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Default Re: DIY Greenie?

I just wanted to add that the pump diode in the aixiz is probably close to 200mW to begin with, and just has low efficiency crystals. SO even if you DID want to try something like this, 200mW is not a big pump at all. Like switch said you're looking at about 20% efficiency, realistically it may be less. So even if the crystals could handle more power, one would want to use at least a 500mW pump.
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Old 05-22-2008, 01:19 PM #10
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Default Re: DIY Greenie?

So i need a 500mW diode but were to get the 200mW crystals.
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Old 05-22-2008, 10:56 PM #11
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Default Re: DIY Greenie?

Ebay, or GOOGLE!!!
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Old 05-23-2008, 11:55 AM #12
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Default Re: DIY Greenie?

Hey I was wonderin, if there is any devide accesible today with green laser diode? You can pull red offa dvd burner, blue off PS3, is there anything from what you can pull a green laser diode (except a green laser of course )

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'cause I don't spend too much time on this forum.
Thanks
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Old 05-23-2008, 01:02 PM #13
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Default Re: DIY Greenie?

i dont think a green diode is in any thing, i might be wroung though
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Old 05-23-2008, 01:50 PM #14
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Default Re: DIY Greenie?

No green in consumer electronics. It just wouldn't make much sense. All the other lasers in normal electronics (red, infrared, blu-ray) are diode lasers. Green are DPSS (google it) and would take up a bit more space. Not to mention that I dont think a green could do anything that a red or blu-ray couldn't so it's just not cost effective.
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Old 05-23-2008, 06:17 PM #15
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Default Re: DIY Greenie?

Yes, i know about the 20% effeciency, but i don't really want to build a high powered green laser. if im used a 500mW pump diode, that would give me 100mW. I could use a 1000mW diode, which would give me 200mW. But i still don't know where to get the KTP crystals...
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Old 05-23-2008, 07:20 PM #16
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Default Re: DIY Greenie?

Hey ben74,
check this one out: http://cgi.ebay.com/Nd-YVO4-KTP-crys...QQcmdZViewItem
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Spyderz20x6

The Copperhead: 330mW Copper Heatsinked Pocket Pal w/ Meredith Glass Lens and Open Can Diode! See Here
1x 20x 650nm 250mW Burning Mini Laser
1x 20X Open Can 280mW Mini Pocket Burner in 4" Host
1x DX 532nm 10mW Laser
1x 780nm NIR Dorcy Jr. 250mW Laser
KES-400A PS3 405nm Blu-Ray 10mW
PHR-803T Mini 4 inch 405nm Blu-Ray 140mW

Are you a beginner, wanting to build a DIY laser, but do not have a clue about how? Well, then look here!


"its cool dont worrie about it its under controle"
-Jake21, 2009
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