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Old 06-21-2015, 02:34 PM #1
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Default NUBM44 6W+ 450nm Laser Diode

6W+ NUBM44 450nm Laser Diode
Title subject to change when confirmation of max output is determined








So here is the new bad boy on the block. My meeter does not read past 6.8W but this diode is clearly doing well over 7W but I will call it 6W till someone can show some testing further than I can with my meeter. In this video I show how my meeter is maxing out. @ 4.5A it does 6.8W and I ran it for about two minutes @ 5.5A with the meeter pegged at max the whole time never a drop in reading so there is a very good chance it is doing much more than that.



















































So there you have it more data to come along with some wavelength testing.



Last edited by DTR; 12-29-2015 at 12:20 AM.
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Old 06-21-2015, 02:43 PM #2
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Default Re: V1 445nm Laser Diode

Are these the same price as the 7A75s?
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Old 06-21-2015, 02:46 PM #3
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Default Re: V1 445nm Laser Diode

I don't have them for general sale yet as I only got one projector but I do have a few on hand to sell. Was looking to get a few of them in the hands of those that can do power testing over 7W or spectro them but shoot me a PM if you want one.
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Old 06-21-2015, 02:47 PM #4
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Default Re: V1 445nm Laser Diode

Is this the Array GB diode? It looks like this is going to make for some really powerful handhelds. Imagine a tri-diode build with this... 3x 6W minus optical losses... 15W? That should obliterate the previous record of 7.3W

Very nice stuff, can't wait for the extra info (especially wavelength, aren't these rated for 455nm?)
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Old 06-21-2015, 02:49 PM #5
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Default Re: V1 445nm Laser Diode

Quote:
Originally Posted by doubleone44 View Post
Is this the Array GB diode?

That is the array with the screwy ball lenses on them that spread like a flashlight. This one has normal can diodes in them.
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Old 06-21-2015, 02:50 PM #6
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Default Re: V1 445nm Laser Diode

Ah. But it's the same diode or no? I guess time will tell..
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Old 06-21-2015, 02:51 PM #7
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Default Re: V1 445nm Laser Diode

Maybe.
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Old 06-21-2015, 04:03 PM #8
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Talking Re: V1 445nm Laser Diode

Have you tried it with a three element yet to see if it produces 6 watts even with the loss from the three element?
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Old 06-21-2015, 05:20 PM #9
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Default Re: V1 445nm Laser Diode

Speaking of lens, are the kenses in these just trash like most of the 9mm projectors?

Also, pm sent...
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Old 06-21-2015, 06:17 PM #10
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Default Re: V1 445nm Laser Diode

Fantastic!

These also seem to be a lot more efficient than the other blues.

What's the beam like?
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Old 06-21-2015, 06:49 PM #11
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Default Re: V1 445nm Laser Diode

Curious as to why you can't read higher than that. What is the limiting factor with your meter? Is it just the display so you could just use a multimeter or something else?
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Old 06-21-2015, 06:56 PM #12
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Default Re: V1 445nm Laser Diode

Most likely the voltage of the split-rail supplying the Ophir. Im guessing 2x9V batts. He can probably read it fully if he uses +-15V or something.
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Old 06-21-2015, 07:14 PM #13
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Default Re: V1 445nm Laser Diode

Quote:
Originally Posted by Pman View Post
Curious as to why you can't read higher than that. What is the limiting factor with your meter? Is it just the display so you could just use a multimeter or something else?
Yea when I built it I used two 9V DC-DC converters. This was when getting to 3W was an amazing feat. I just don't feel like rebuilding it at the moment with 12V ones.
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Old 06-21-2015, 07:23 PM #14
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Default Re: V1 445nm Laser Diode

Oh my god, this is incredible. I was just reading some old threads around the time where 1W Blues were all the craze. Now look at this! 7 watts from a SINGLE DIODE!! Can't wait until someone gets their hands on one of these and puts them into a host. Best of luck with them, Jordan! +rep
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Old 06-21-2015, 08:56 PM #15
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Default Re: V1 445nm Laser Diode

Well the other reason I asked is I have a feeling im in the same boat. I think I'm running 5V and 2 9V cells. Didn't even think about a limitation when we were all building them either.
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Old 06-21-2015, 09:30 PM #16
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Default Re: V1 445nm Laser Diode

Amazing diode , thanks for sharing Jodan!

Pete, I think a lot of us are going to find ourselves in that situation, using the two 9v power supply. It didn't seem like a limiting factor just a short time ago.
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