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Old 12-13-2014, 08:56 PM #17
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Default Re: My new toy: Yellow HeNe 594nm

Quote:
Originally Posted by Sigurthr View Post
Wow, that is a STEAL of a price! I paid $550 for mine and that was considered cheap for 4.1mW N.O.S. condition.

As UK states you can almost always coax red out of just about any tube given the right mirrors, but to get orange is a feat. It certainly can be done though. I discussed this with Dr. Sam after I got mine and more often than not you need to be able to access and align an external mirror to the Anode (HR) end.
It just depends on the way that the tube was constructed. On Melles tubes, the HR mirror is passing the red to allow the other colors to resonate. On some tubes both mirrors pass red. The bore width and length play a part too, as well as the gas fill and pressure. Most other color tubes are filled at a lower pressure than red to maximize gain, at the expense of the tube's life. If you want to do a external mirror work, you'll have to determine how the mirrors have been set up. And I would definitely not encourage taking apart a perfectly good tube. The aluminum cover is there for a reason. If you expose the tube to the air, the stability will go down, as well as it's overall power potentially. It will also be exposed to the environment around and a lot to get dirty, and it will no longer be protected by the rigid housing if it is dropped, etc.


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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; 12-13-2014 at 10:34 PM.
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Old 12-13-2014, 10:33 PM #18
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Default Re: My new toy: Yellow HeNe 594nm

Oh yes, definitely, don't open her up, haha. Not worth it imo.
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Old 12-14-2014, 03:38 AM #19
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Default Re: My new toy: Yellow HeNe 594nm

Very nice and decent price.

I got both of my 594's at less than $150 each. But I don't think they are the power of yours.

You won't find a 612nm for much less than $500 or it is a steal. Even low power are super pricey and rare.

The red and green you can pick up cheap (ish). Adding the HeNe power supplies, etc. can eat up some bucks too though.

I never thought I'd have more than a handheld or two. Then I started collection HeNe and Argon lasers. It can be addictive. But, I guess as far as addictions go, there is worse.

Quote:
Originally Posted by argon View Post
Mattronium, you must be joking ;-) Just for a simple toy this is enough money. It was an auction at ricardo.ch, a swiss auction line, something similar like Ebay. At first it started at 50 CHF, but then it got higher and higher. Honestly, I wouldn't spend much more than this. Anyway, it is in good condition and I like it

What do you think, guys, is it possible to get some more lines with an external mirror? Would be nice to get the 612nm line.

Very best regards
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Old 12-14-2014, 07:45 AM #20
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Default Re: My new toy: Yellow HeNe 594nm

Thank you guys for your tips regarding 612nm.

Maybe someone is inteersted in the following auction on ebay. Three HeNes, red, green and yellow, unfortunately in "unknown condition":
3 Lasers JDS Uniphase 1135P Lasos LGK 7512 P LGK 7786 P100 | eBay

It is rather easy to build a power supply for a HeNe tube. There are many ways and schematics on the internet.

Best regards
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