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Old 05-18-2015, 09:57 AM #17
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Default Re: Omni Series 43 Ar/Kr laser problems

Quote:
Originally Posted by DanBrown View Post
Thanks. I will continue to read what's required for alignment, and see if I can source a hene laser... At this stage, if it only took me one whole day to get it aligned I'd be more than happy.
Indeed. A hene is preferable, but anything green will at least somewhat penetrate the mirrors. The white lights are harder due to the mirrors being broadband.100mW is a bit strong for such a task, and unsafe, but jtd work with some care as long as it can make it through the bore cleanly. You may have to learn how to disassemble the head to get the mirrors out to really have a good chance. But that means they'll need cleaning, and the fiber re-installed so on so forth... This will be a big task for you...


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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 05-18-2015, 09:18 PM #18
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Default Re: Omni Series 43 Ar/Kr laser problems

A HeNe isn't useful unless you're WAY out of alignment, and it only helps with HR if I remember correctly. If you can get it to lase (even a flash) by moving either/both mirrors, you're doing okay. There are many tutorials available on alignment.
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Old 05-19-2015, 12:16 AM #19
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Default Re: Omni Series 43 Ar/Kr laser problems

Quote:
Originally Posted by Cyparagon View Post
A HeNe isn't useful unless you're WAY out of alignment, and it only helps with HR if I remember correctly. If you can get it to lase (even a flash) by moving either/both mirrors, you're doing okay. There are many tutorials available on alignment.
I'd beg to differ. I do know what you're getting at, but it's quite hard to find a flash on these due to how narrow the bore is. though I will say they are fairly tolerant mirror wise. there isn't really a way to rock the endplates, but you can do a search pattern top to bottom if you know the other mirror is aligned properly. I usually use a small green HeNe mostly for reference, rather than as a guide. its helpful for getting the OC correct. though the HR is pretty much totally reflective at most everything, though it does transmit a little green iirc. its simple, but time consuming. the hard part is getting the HeNe through the bore, then you can reflect the beam back into the HeNe and by extention you know its close, then tweak and perfect from there. I actually found that I can use internal retro-reflections on the narrow brewster stems to help center it to get your first light, then walk the mirrors into place pretty readily. I'm making the assumption he needs to start from scratch, but that may not be the case. if he's only messed with the HR, then it would be more worth while to just search with that mirror.
__________________
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; 05-19-2015 at 12:18 AM.
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