Old 12-05-2013, 08:13 PM #1
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Default Disassembly of a 589nm laser PGL-III-A (PIC HEAVY)

Hello everyone.

Before I begin, I'd like to apologize for the semi-roughness of this post, the pictures are not all aligned, and there are a lot of them, and I forgot to change the title to say it was pic heavy. I also took these on an iPhone as it was the only camera I had that takes decent digital pics at the moment.

So...long ass post....Don't look back...we're doing the forbidden here...hang on and hope you don't smell your socks!

Ok, so here we go...I took apart my damaged PGL-III-A yellow in the interests of science ... but only after saying all the appropriate prayers to the gods of lasers of course!

I highly recommend you do not do this yourself. It is quite difficult and is very easy to screw up things inside irreparably!

I started obviously by removing the tail cap and the battery, as well as the shutter. (it just unscrews like the tail cap, though the label may be covering it slightly)

a peek inside:


Everything seems happy, and I'll note the collomating lens on this is simply fantastic. not a scratch on it and has awesome divergence.
I had to remove a few blobs of epoxy around the edge securing the lens pill to the host so it would remain in focus. after i used a probe and a pair of pliers to unscrew it. I'll add that it was quite difficult, and even with the aid of acetone to soften the adhesive, it was quite hard to unscrew as it got in the threads. make sure you scrape all of it out before start, and be prepared to fight and be patient, if you rush it you could nick the lens. you will likely tear up the pill a bit, but as long as its in a safe area it shouldn't matter. just take your time and be patient with it.

Lens mount:


another peek inside:


After there was a brass retaining ring holding the module inside, i used similar methods to remove it, afterward tipping it upside down allowed the module to slide out freely.





sliding this bad-boy out:



The bare module itself:



A few shots of the driver(s):
note the pot on it. clockwise increases power, and counter-clockwise reduces it, its only about a turn so a little goes a long way. Though I'd recommend leaving it be.





The brass retaining wall of the forward module is threaded, it just unscrews and slides off the front:




the inside:



closeup on the ppKTP copper mounting block/heatsink, as well as the IR filter and corrective optics in the front:


unscrewed the IR filter and forward optics, probably including the OC:


Reverse side of IR/OC:


unmounted copper block containing ppKTP lasing NLO/crystal:



The eye of the tiger! looking through the KTP to check its general condition. As you can see, though it is nonlinear you can still see through it better than the finest window:



KTP exposed in it's copper block:


All of it together:




Phew! OK long post, cant get any deeper yet due to an epoxy seal between the copper and aluminum parts, I might try to tackle it later to get at the deeper guts, but I hesitate to do so as then i'll lose the rotation for the KTP. but hey...I've already had to go this far right?

So.....I dug in a little deeper...turns out the module unscrews from the back, a flick of the flathead to remove a ring of epoxy and BAM! it unscrews to reveal the 808 C-mount pump diode.



while on the inside....another refocusing optic to prep it for the Nd:YAG.....



corrective optic removed:



You can see the Nd:YAG crystal in there rather cheesily put in, and its loose. low and behold this is my problem, and yet the hardest thing to get to. They YAG is lightly adhered to two small blocks of copper which were dropped into the front (aluminum) part of the module, then the brass rear and corrective optics+diode. this allows the aluminum part to be rotated freely to get your alignment with the ppKTP crystal! Quite a most ingenious design for initial setup from the way I can see the body of the module works. anyways, a flick of my screwdriver quickly removed my nemesis from its hiding place.



both crystals safely removed without scratching and preserved in a high purity acetone bath to remove contaminates before storage:



Anyways...thanks for sticking around to watch! its been a long involved process, and I hope this can help someone else if theirs ever breaks down. If someone would like me to document the insides/teardown of another laser, or do reviews I'd be happy to do so

In the meantime I'll be preserving the crystals from this beast, perhaps someday i'll rebuild it bigger and better than it was before. but first i need a new set of IR protection.

Cheers!



Last edited by ultimatekaiser; 08-23-2015 at 07:35 AM. Reason: Fixed some typos, general cleanup
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Old 12-05-2013, 09:52 PM #2
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Default Re: Disassembly of a 589nm laser PGL-III-A

Here you go guys... enjoy my poor rigel HV.....RIP
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594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
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641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
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671nm: CNI PGL-III-C-100
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1152.6nm: SP-120 HeNe alt. mirrors
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Last edited by ultimatekaiser; 12-05-2013 at 09:53 PM.
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Old 12-05-2013, 10:04 PM #3
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Default Re: Disassembly of a 589nm laser PGL-III-A

Would be cool if you could get shots of the vanadate (first crystal)-from what i have heard, its simply two different coated crystals glued together, and I have several questions about it. That may take it beyond repair, however.

Thanks for the pics though! First time i have ever seen a GLP disassembled.
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Old 12-05-2013, 10:28 PM #4
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Default Re: Disassembly of a 589nm laser PGL-III-A

I might. It's passing 808 so I'm pretty sure the yag is the issue, but I gotta figure out how to get in there first
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476.5nm: Argon Ion Line

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586.2nm: DPSS line
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591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
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641nm: Melles Griot RCS
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Old 12-05-2013, 11:49 PM #5
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Default Re: Disassembly of a 589nm laser PGL-III-A

Well the III-A is quite a bit different than the GLP. What he has is much more uncommon than the III-Cs and the GLP's
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Old 12-06-2013, 02:57 AM #6
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Default Re: Disassembly of a 589nm laser PGL-III-A

Quote:
Originally Posted by ZRaffleticket View Post
Well the III-A is quite a bit different than the GLP. What he has is much more uncommon than the III-Cs and the GLP's
Ah my bad, I read III-A as III-C. used to seeing III-C, so my brain just changed it i guess.....Wish it wouldn't do that...
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Old 12-12-2013, 10:22 PM #7
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Default Re: Disassembly of a 589nm laser PGL-III-A

Interesting pics. I still need to get the module out of 589 GLP I have. I'm pretty sure the pump diode went LED since the driver still draws the same current and voltage that it did when it was working.
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Old 12-12-2013, 10:49 PM #8
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Default Re: Disassembly of a 589nm laser PGL-III-A

Sounds like it. They have a similar structure I think too. Would you like me to dig it out? Problem is a new diode means a new alignment
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430nm: Coherent D3 430-10
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457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473-5
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics Cyan 488-20 DECSL, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-100
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
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Last edited by ultimatekaiser; 12-12-2013 at 10:49 PM.
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Old 12-16-2013, 08:25 PM #9
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Default Re: Disassembly of a 589nm laser PGL-III-A

Updated first post
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375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473-5
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics Cyan 488-20 DECSL, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-100
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors
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Old 12-16-2013, 08:54 PM #10
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Default Re: Disassembly of a 589nm laser PGL-III-A

Nice , So it is one Nd:YAG crystal lasing at both lines ?
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Old 12-16-2013, 08:59 PM #11
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Default Re: Disassembly of a 589nm laser PGL-III-A

Yes sir! As far as I can tell. Looking at the side of the YAG I cannot see a line, so I am assuming it isn't two crystals fused, or just one, coated for both.
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325nm: Omni 2056-M-A01 HeCd
375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473-5
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics Cyan 488-20 DECSL, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-100
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors

Last edited by ultimatekaiser; 03-22-2015 at 09:14 AM.
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Old 12-16-2013, 09:08 PM #12
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Default Re: Disassembly of a 589nm laser PGL-III-A

Quote:
Originally Posted by ultimatekaiser View Post
Yes sir! As far as I can tell. Looking at the side of the YAG I cannot see a line, so I am assuming it isn't two crystals fused, and just one, coated for both.
:O

My previous assumptions were not true....in that case....how the f@#$?!?!?!
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Old 12-16-2013, 09:16 PM #13
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Default Re: Disassembly of a 589nm laser PGL-III-A

The process more or less seems to be like this for this laser:



If it is two YAGs fused, then the line is hidden very well, I'll take a magnifier to it later to check more closely but its likely monolithic (and there's no reason it can't be), but at the present it appears to be just one crystal. sometimes optically bonded crystals don't leave a clear line so there's no way to really easily know for sure, one side of the YAG is crazy reflective to visible light though.

edit: it is just one crystal.
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325nm: Omni 2056-M-A01 HeCd
375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473-5
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics Cyan 488-20 DECSL, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-100
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors

Last edited by ultimatekaiser; 08-23-2015 at 07:40 AM.
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Old 12-16-2013, 09:34 PM #14
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Default Re: Disassembly of a 589nm laser PGL-III-A

Yea that would be the only explanation other than it just being lasing 1187 then doubling to 593.5


I thought Nd:YVO4 was very picky about the input, in that it had to be 808.

One unimportant note, I thought the pens used b-mount diodes, not c-mount. Did you actually look at the diode, or is that just speculation?

EDIT: after i think about that, b-mounts would be a PITA to use in handhelds. I just figured c-mounts would be too big for pointers, although i have never seen one of CNI's pens in person so i dont know the actual size...

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Old 12-16-2013, 09:49 PM #15
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Default Re: Disassembly of a 589nm laser PGL-III-A

Well Its a large pen per-se its not a little one like a GLP, its a middle size between the GLP and PGL-III-C.

and for the 589 I believe it uses yittrium garnet, while the 593.5 uses the yittrium vanadate. this is due to the YVO4 having too weak a line at 1319. I'll also note that the 1319 and the 1347 lines like to compete with each other for dominance, and they also like to try to fight with the larger 1064 line. so this is a tricky setup to get lasing and to KEEP lasing. It's very temperature sensative, and of course about its orientation.
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325nm: Omni 2056-M-A01 HeCd
375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473-5
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics Cyan 488-20 DECSL, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-100
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors
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Old 12-16-2013, 10:08 PM #16
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Default Re: Disassembly of a 589nm laser PGL-III-A

Yea, 589 is Nd:YAG. But still, I didnt think either of them liked to lase at any input other than 808...
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