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Old 06-26-2014, 12:39 AM #1
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Default 4 diode laser?

Hey all,

I have just recently watched https://www.youtube.com/watch?v=yXEGlfKmspc and was very impressed seeing a triple diode laser that is handheld(sort of) and was wondering if anyone on these forums have gotten a handheld laser(not a labby) past the 10w marker? This question is mainly just to see what people would or have done to make one. Only thing that I can imagine here is the size of the thing and the main. heatsink

Preferably a 445 build.


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Old 06-26-2014, 12:48 AM #2
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Default Re: 4 diode laser?

I'm sure you can hire ricktrent to do something. He seems to be pretty good at frankensteining projects... especially considering 5W max diodes are out... 10W should be passable with a 3-diode host.
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Old 06-26-2014, 01:11 AM #3
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Default Re: 4 diode laser?

At this point the only limiting factor is what you define as handheld.

I could easily make a 40W FAP portable, but it would be pretty big.
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Old 06-26-2014, 01:44 AM #4
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Default Re: 4 diode laser?

Hmmm, you guys know me, I am still dreaming of that ghostbuster backpack laser packin 40+ watts ! I aint afraid of no ghost! The government of Canada, mostly health Canada, now that's a different story! LOL
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Old 06-26-2014, 01:47 AM #5
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Default Re: 4 diode laser?

I would go with ARG. RT does not use the waveplate things and then you get the plus sign beam
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Old 06-26-2014, 01:58 AM #6
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Default Re: 4 diode laser?

Quote:
Originally Posted by Blackwolf View Post
I would go with ARG. RT does not use the waveplate things and then you get the plus sign beam
That's also another thing to consider.

When you stack beams you get either worse divergence or worse beam size. Then again, most people only have eyes for the power rating of a laser.
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Old 06-26-2014, 04:39 AM #7
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Default Re: 4 diode laser?

Quote:
Originally Posted by ARG View Post
That's also another thing to consider.

When you stack beams you get either worse divergence or worse beam size. Then again, most people only have eyes for the power rating of a laser.
Maybe most people you see in threads such as these haha. But there are plenty who appreciate a fine beam that isn't trying to dual-spec Laser and Flashlight if you get my drift.
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Old 06-26-2014, 04:45 AM #8
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Default Re: 4 diode laser?

Quote:
Originally Posted by upaa27 View Post
Hey all,

I have just recently watched https://www.youtube.com/watch?v=yXEGlfKmspc and was very impressed seeing a triple diode laser that is handheld(sort of) and was wondering if anyone on these forums have gotten a handheld laser(not a labby) past the 10w marker? This question is mainly just to see what people would or have done to make one. Only thing that I can imagine here is the size of the thing and the main. heatsink

Preferably a 445 build.
The most power I have seen is this 10 W build outta Mother Russia....OR....perhaps Rick Trent has surpassed this ?????

11W blue laser "hell burner". Hello from Russia ;)

This unit has Eight (8) 9mm 445 diodes, 4 separate LD's... knife-edged, then ....a 4 + 4 combined with a PBS...Bob's your Uncle !!
He used no corrective optics....but then....the 9mm have a decent divergence without corrective optics.

Now..with the advent of the new 4~5 W NDB7A75 445's.....you MAY achieve 8 to 9W....with two of the NDB7A75 LD's...with a waveplate and PBS combo....BUT....it WILL need some adaptive correction optics to lower the divergence and reach acceptable energy density!! I would go with a set of Cylinderical lenses to get a reasonable tight beam out the front door !! See this beauty for inspiration !!!!!!!!!

[Dual 411nm 1335mW] 2D MAG with PBS cube & Newport mounts.

Use two 7A75's....and add a waveplate and some Cylindericals for correction!!! Yep !! Maybe 9W....in a fairly compact build....not small....but not HUGE !!!
Doable !!!!


BUT....MORE is possible !!! I speculate about 30W with the current LD's available to us....and reasonable energy density thru corrective optics !!
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Old 06-26-2014, 06:56 AM #9
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Default Re: 4 diode laser?

Thanks all for your replies!

Quote:
Originally Posted by ARG View Post
That's also another thing to consider.

When you stack beams you get either worse divergence or worse beam size. Then again, most people only have eyes for the power rating of a laser.
Lol. Power isn't too much of a focus it is just what seems to always make the papers. I really like a nice solid beam with low divergence which most higher powers can't do. Guess I just wanted to see if anyone had surpassed a milestone that hasn't or is extremely difficult to accomplish.
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Old 06-26-2014, 10:35 AM #10
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Default Re: 4 diode laser?

Quote:
Originally Posted by IsaacT View Post
Maybe most people you see in threads such as these haha. But there are plenty who appreciate a fine beam that isn't trying to dual-spec Laser and Flashlight if you get my drift.
Please explain this statement, to me it sounds like your setting us up for a custom made dual host.

I you can verify then I would go further into my guessing on who, what, where
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Old 06-26-2014, 02:57 PM #11
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Default Re: 4 diode laser?

Too bad Soraa (formlerly Kaii) didn't continue with their laser development- in 2011 they already had 4W InGaN (445) diodes, and 750mW single mode versions. Woulda been schweet, eh?

Upaa if you want more info on beam combining and correction, I suggest taking a look at the "other" forums. Being projector people, the beams they use cant be big chunky squares like out handhelds.
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Old 06-26-2014, 06:13 PM #12
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Default Re: 4 diode laser?

Quote:
Originally Posted by CDBEAM777 View Post
The most power I have seen is this 10 W build outta Mother Russia....OR....perhaps Rick Trent has surpassed this ?????

11W blue laser "hell burner". Hello from Russia ;)

This unit has Eight (8) 9mm 445 diodes, 4 separate LD's... knife-edged, then ....a 4 + 4 combined with a PBS...Bob's your Uncle !!
He used no corrective optics....but then....the 9mm have a decent divergence without corrective optics.

Now..with the advent of the new 4~5 W NDB7A75 445's.....you MAY achieve 8 to 9W....with two of the NDB7A75 LD's...with a waveplate and PBS combo....BUT....it WILL need some adaptive correction optics to lower the divergence and reach acceptable energy density!! I would go with a set of Cylinderical lenses to get a reasonable tight beam out the front door !! See this beauty for inspiration !!!!!!!!!

[Dual 411nm 1335mW] 2D MAG with PBS cube & Newport mounts.

Use two 7A75's....and add a waveplate and some Cylindericals for correction!!! Yep !! Maybe 9W....in a fairly compact build....not small....but not HUGE !!!
Doable !!!!


BUT....MORE is possible !!! I speculate about 30W with the current LD's available to us....and reasonable energy density thru corrective optics !!
Thanks for the links! They were very helpful!
Quote:
Originally Posted by crazyspaz View Post
Too bad Soraa (formlerly Kaii) didn't continue with their laser development- in 2011 they already had 4W InGaN (445) diodes, and 750mW single mode versions. Woulda been schweet, eh?

Upaa if you want more info on beam combining and correction, I suggest taking a look at the "other" forums. Being projector people, the beams they use cant be big chunky squares like out handhelds.
I remember reading about them last year and was disapointed that they discontinued those nice greenies! For the forum, are you referring to candlepower?


Thanks again guys!
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Old 06-26-2014, 08:56 PM #13
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Default Re: 4 diode laser?

forum i meant was PL. Cant say it or i may get banned

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Old 06-26-2014, 10:14 PM #14
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Default Re: 4 diode laser?

I've said PhotonLexicon loads of times before without getting banned. Don't see why it would be a problem
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Old 06-26-2014, 11:38 PM #15
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Default Re: 4 diode laser?

Im thinking of the ye olde filters, that apparently arent as stupidly strict anymore. Or maybe it was just for direct links. Anyway, yes, PhotonLexicon is the forum i was referring to.
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Old 06-27-2014, 01:44 AM #16
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Default Re: 4 diode laser?

Quote:
Originally Posted by ARG View Post
I've said PhotonLexicon loads of times before without getting banned. Don't see why it would be a problem
Oooohhh Mods are coming


Haha that'd be a pretty harsh rule if it was one
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