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Old 09-27-2014, 02:37 AM #17
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Default Re: More Single Brewster HeNe shots! 632.8nm and 594.1nm

Hence why a mechanical dump is so attractive. You won't get the high rep rate of a PC, but you should get detectable high peak pulses followed by a long dead time. Since it is impossible to instantaneously get a mirror into the beam path, or even get one mostly in place before the cavity has dumped, you won't get a full bore cross-section's output, but just a sliver, or crescent-moon at best. That's still something though.

I am curious though, how much of the bore cross section can be obscured before lasing ceases. I suppose you could test this right now, UK or Bloom. You've both got open cavities on hand.


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Old 09-27-2014, 07:48 PM #18
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Default Re: More Single Brewster HeNe shots! 632.8nm and 594.1nm

I do not have a b-tube.

However, removing the core can still be problematic. You're removing the path the light will take to get to the side of the beam you are not touching. They are proportionate to one another. Symmetrical/mirrored.

As for the use of a 107/127/907. Yes, that was the planned tube to use. I almost bought Dave's (not Kaiser's) for that very reason. However, I did not want to kill a 127 doing 46.5mW. Though it's the best candidate for this. Incredible intracavity power, 2B tube, etc. it's the greatest option.
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Old 09-28-2014, 01:40 AM #19
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Default Re: More Single Brewster HeNe shots! 632.8nm and 594.1nm

Quote:
Originally Posted by bloompyle View Post
I do not have a b-tube.

However, removing the core can still be problematic. You're removing the path the light will take to get to the side of the beam you are not touching. They are proportionate to one another. Symmetrical/mirrored.
Ya, but even an extended cavity can be used to experiment and see how much cross section obstruction is tolerable, it is just harder to do because instead of lasing ceasing, you'd be watching the waste beam for sudden power fluctuations. Anyway, no worries.

Oh and I asked Dr. Sam about that sputtered 1B tube he has. He said it was likely due to interrupted cathode connection or reverse polarization so post-cleaning sputtering may not be an issue. When I have expendable money I may grab it if it is still available and give it a go. He liked my idea of capacitively coupled plasma erosion.
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Old 12-24-2014, 09:08 AM #20
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

A little Christmas present a day early for you guys who've waited patiently. (and not so patiently)

Finally got around to salvaging the one 612nm mirror I have. Alas my poor LOR-161, you will not be forgotten. Your final gift to us before your replacement by a LOR-150...the use of your High Reflector to be allowed on my single brewster tube...

Merry Christmas LPF! (geez the stuff I do for you guys when I'm bored! )

A few Watts of 612nm for your 2014 holiday season:

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476.5nm: Argon Ion Line

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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
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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
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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
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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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Old 12-25-2014, 12:36 AM #21
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

tym kaiser
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Old 12-25-2014, 12:52 AM #22
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Beautiful! I love intracavity shots!
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Old 12-25-2014, 06:21 AM #23
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Oh one day I will own a beautiful laser like this.

I love the orange, and one day I will see it in person!

Thanks Kaiser!
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Old 12-25-2014, 06:33 AM #24
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Quote:
Originally Posted by TheGreaterWatt View Post
Oh one day I will own a beautiful laser like this.

I love the orange, and one day I will see it in person!

Thanks Kaiser!
good luck finding this HeNe they are rare and if you can find one be prepared to cut off both arms and your legs to buy it
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532 nm 200 mw
532 nm ? mw GearBest Laser $ 15
532 nm 60 mw pen

632.8 nm .5 mw Uniphase 1508 Helium Neon Gas Laser
632.8 nm 1.3 mw Uniphase 098-0 $ 150 Heliun Neon Tube
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Old 12-25-2014, 06:59 AM #25
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Quote:
Originally Posted by vortish View Post
good luck finding this HeNe they are rare and if you can find one be prepared to cut off both arms and your legs to buy it
Sam has got a few single brewsters on his for-sale page. It is the mirrors that will be hard to find. As for price, good old Sam has some pretty good deals.
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405nm: Survival host 510mW
445nm: Ghetto Labbie 1232mW
462nm: Survival Host 1668mW
473nm: Jetlasers PL-E 15mW
488nm: Argon SL JDS Uniphase 23mW
520nm: Survival Host 127mW
532nm: SDLaser Portable 61mW
543.5nm: HeNe Melles Griot ~1mW
589nm: Dragon Lasers Spartan 128mW
632.8nm: HeNe JDS Uniphase Head 18mW
635nm: Pen Style ~5mW
660nm: Ehgemus host 275mW
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Old 12-25-2014, 07:26 AM #26
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Sam's are similar, but not like mine. Mine is a broadband, low expansion hard seal tube, rated 60W+. Only a handful of 580s were ever produced to my knowledge, both red and green. I think most of sam's tubes are soft seal REO tubes. Though I think he has a few newer melles griot tubes that are hard seal, and a LHB-569 which would be a close competitor to mine. But it's 750 bucks I think last I asked him about it for the tube and a mirror. Which is a bargain. They're very expensive. Though you can get some smaller or lower power ones for 300-500. But that doesn't include power, mirrors, mirror mounts , and anything to mount them in to keep them steady...

Save up it's well worth it though.
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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
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; 01-12-2015 at 08:55 AM.
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Old 12-26-2014, 03:54 AM #27
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

What are the practical applications for this? Can anything realistically be done with all that intracavity power? I know Sig mentioned a mechanical beam dump which I read up on a bit, but it doesn't seem like that would get much output , what with it being something mechanical vs. the speed of light...
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Old 12-26-2014, 04:07 AM #28
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Their original purpose was particle counters and gas analysis. As well as education.

But as we have powerful solid state and other things available now, they're not really used anymore, since they're so expensive to produce. Gas in general is going out of style as the cost usually doesn't outweigh the benefits a lot of the time. Solid state has improved so much in recent years that it is a better option for many applications. it is far cheaper, and can achieve far higher output at lower power consumption, and is much smaller than most gas lasers.
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473nm: CNI MGL-473-100, CNI GLP-473
476.5nm: Argon Ion Line

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488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, Coherent Sapphire 488-20 OPSL

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561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-20
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583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
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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
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
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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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Old 12-26-2014, 05:20 AM #29
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

I hope they never stop the production of gas lasers, they are far more interesting and pretty (in my opinion). There is really a lot more to do with a gas laser and more to look at.
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Old 12-26-2014, 05:39 PM #30
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, and 594.1nm

Niiiiice. As Dave Jones would say "That's ****ographic!"
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Old 01-15-2015, 06:15 AM #31
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, 594.1nm and 543.5nm

Added green! Holy *bleep* it is a touchy alignment! Enjoy all that green!

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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
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; 01-15-2015 at 06:15 AM.
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Old 01-15-2015, 07:35 AM #32
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Default Re: More Single Brewster HeNe shots! 632.8nm, 611.9nm, 594.1nm and 543.5nm

Wow! Seriously, wow. I think Dr. Sam might like to see that photo.
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