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Old 12-12-2013, 01:08 AM #1
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Talking Melles Griot P-122 (bare Tube) up and lasing

Finally found a decently priced (and in good condition) PS brick that was DC to run this sucker. following a little advice on what to use to power it, finally went with a 12V 1.5A Wall Wart to run it. Its now up and lasing about 2.55mW or so of beautiful 632.8nm Red photons!

never you mind its stealthy 594.1nm big brother in the background...It'll get the spotlight soon enough....

now I just need to tackle the uniphase, its little sister in crime only takes 1KV @3.7mA....

I used a 75K ballast on it, bringing the tube up to about 1930V @ 6.5mA.
The divergence out the the mirror is actually fantastic on its own, so I doubt I'll be adding a lens to it. the bare output is a very clean round TEM00.





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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
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, 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: CNI MGL-F-3W, 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 561-20
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; 12-31-2013 at 10:09 PM. Reason: added additional pic
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Old 12-12-2013, 01:32 AM #2
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Its lasing where is the beam

I love the glow of bare tubes
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Old 12-12-2013, 01:35 AM #3
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

lol i'm taking other pictures. just taking my sweet time uploading them its on top of my book-case now, not my desk. I don't have a method of making fog in my room atm so I'm not able to do good beam shots
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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
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, 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: CNI MGL-F-3W, 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 561-20
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; 12-12-2013 at 01:54 AM.
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Old 12-12-2013, 01:57 AM #4
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

I was just teasing since it seems like the ONLY photos posted now are of high powered beam shots......nice to see the gas and exotic "beam shots"
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Blue & Black Marble Kryton Groove 445nm- 2.65W with 3 element lens, G2 untested
Polished Minisabre V2 462nm - 250mW
Red & Black Marble Kryton Groove 635nm- 500mW
Custom Titanium PL520- stable 80mW



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Old 12-12-2013, 01:59 AM #5
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

haha yes, but very difficult to take a natural beam shot of a hene because the output is so low, and without having the white light well wash it out.

here it is with its new adopted little sister...a uniphase 098-0B that I picked up OEM brand new, still in the box and everything.

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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
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, 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: CNI MGL-F-3W, 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 561-20
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; 12-12-2013 at 02:02 AM.
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Old 12-12-2013, 02:04 AM #6
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Ah was that the one posted in the "deals" thread and someone bid you up or was that a different person? I hope it wasnt someone on LPF if it was you. Thats just dirty and not cool. I hope to one day get into gas lasers but right now, diodes and handhelds are my game
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Laser collection:
Blue & Black Marble Kryton Groove 445nm- 2.65W with 3 element lens, G2 untested
Polished Minisabre V2 462nm - 250mW
Red & Black Marble Kryton Groove 635nm- 500mW
Custom Titanium PL520- stable 80mW



M43vn, Crelant 7G2CS dedomed, Armytek Barracuda, SupBeam K40vn, SupBeam X40, Niwalker Vostro Mvn, Convoy C8 2015 version, Shadow SL3, Crelant 7G5CS, L3 L10, 2x 365nm UV Flashlights, Red P60 Dropin
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Old 12-12-2013, 02:16 AM #7
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

was it in the deal section? i havent checked it. quite possible it was. it was almost mine for 30 bucks...but someone upped it to 67.50 trying to outdo me in the last 30 seconds. I quite like my gas, and considering these are worth many times that im not afraid to dish out a little extra cash for them at times. if it was someone on LPF i sincerely apologize. though unlike my MG its an internal component hene not a standalone, and is not really all that great by itself. this model uni has somewhat bad beam divergence and not the greatest starter hene. I like this P-122 though, i got it from chad for 60 bucks brand new, and it runs nice and cool, is polarized, and very stable, with a very good beam.
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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
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, 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: CNI MGL-F-3W, 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 561-20
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 06-23-2014, 06:23 AM #8
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Just a neat fact to add.... This tube was 2.55mW when I got it, and I don't run it too often, but probably the most often of my gas, metered it again today and it has climbed to 2.92mW! truly was a new tube... I'm steadily seeing more power every day already almost up to 3mW...go lil HeNe go! not bad for a little linearly polarized tube at all!

Sorry for the slight necro.... But I wanted to share without starting a new thread just for this.

Last edited by ultimatekaiser; 06-23-2014 at 06:24 AM.
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Old 06-23-2014, 02:30 PM #9
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Omg necro pls ban.

But on a serious note, I had no idea hene's could increase in power from just sitting around. Im guessing its due to pressure changes?
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Old 06-23-2014, 03:59 PM #10
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Hot tube alert!
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~405 | ~445 | ~447 | 457.9 | 465.8 | 472.7 | 473 | 476.5 | 487.986 | 496.5 | 501.7 | 514.5 | 532 | 543.5 | 593.5 | 594.1 | 604.6 | 609.07 | 611.9 | 632.816 | ~635 | ~650 | ~660 | ~780 | ~808

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Old 06-23-2014, 05:27 PM #11
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Default Re: Melles Griot P-122 (bare Tube) up and lasing

Quote:
Originally Posted by crazyspaz View Post
Omg necro pls ban.

But on a serious note, I had no idea hene's could increase in power from just sitting around. Im guessing its due to pressure changes?
Not from sitting, but from run time. New tubes sometimes get over filled and as you run new tubes, as they clean up the last contaminates the getter missed by operation and the pressure equalizes and the cathode breaks in, the power rises a bit. It's the sign of a very healthy tube

Last edited by ultimatekaiser; 06-23-2014 at 05:28 PM.
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