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Old 02-01-2014, 07:20 AM #17
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Default Re: Some Brewster shots for the Gassy side of LPF

Very true. Quartz is a silicate, and does have minor NLO properties...even funner fact....your eye does the same thing at body temperature.

many people that have caught 1064 in the eye have reported seeing a flash of green.


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405nm: Melles Griot RCS
430nm: Coherent D3 430-10
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483nm Omni-643RYB Whitelight Line
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496.5nm: Argon Ion Line
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Old 02-01-2014, 07:24 AM #18
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Default Re: Some Brewster shots for the Gassy side of LPF

I'll take the crystal set out of a Newwish pen and test that out real quick.

All joking aside, this has been a good discussion, however I do require rest.

So we'll continue this somewhere else I am sure.

Take care.
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Old 02-01-2014, 07:31 AM #19
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Default Re: Some Brewster shots for the Gassy side of LPF

Bloom there are liquid lenses that can change focal length (or change from Plano-Plano to Plano-convex) when an electric field is applied, I've been wondering if they might be able to replace the AOM in a cavity dump as you're not limited by propagation speed in the piezo medium.
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Old 02-01-2014, 04:14 PM #20
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Default Re: Some Brewster shots for the Gassy side of LPF

Quote:
Originally Posted by Sigurthr View Post
Bloom there are liquid lenses that can change focal length (or change from Plano-Plano to Plano-convex) when an electric field is applied, I've been wondering if they might be able to replace the AOM in a cavity dump as you're not limited by propagation speed in the piezo medium.
I don't need an optic that changes focal length. I need an optic that flips the polarization of input light, in <5ns.
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Old 02-01-2014, 11:21 PM #21
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Default Re: Some Brewster shots for the Gassy side of LPF

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Originally Posted by bloompyle View Post
I don't need an optic that changes focal length. I need an optic that flips the polarization of input light, in <5ns.
Why do you need a polarization shift? To cavity dump you just have to bend the beam off axis. You only need to change the polarity if you want to use a polarizing optic to move the beam off axis. If you insert an off center lens in a laser beam it will bend the beam and steer it away. If you could change an off center plano-plano surface to be a lens which would steer the beam wouldn't that also do the trick?
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Old 02-01-2014, 11:55 PM #22
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Default Re: Some Brewster shots for the Gassy side of LPF

No because then you end the lasing process because you are steering the light away from the mirrors.
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591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
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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

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Old 02-01-2014, 11:59 PM #23
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Default Re: Some Brewster shots for the Gassy side of LPF

That's what normally happens in a cavity dump; you get a large pulse (if you can extract the light fast enough) and then lasing immediately stops until you raise the Q of the resonator again. It's like the opposite of Q switching, instead of holding the medium at a sub-lasing state to build up energy you hold it in a lasing state and then extract the intracavity flux momentarily.
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Old 02-02-2014, 01:06 AM #24
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Default Re: Some Brewster shots for the Gassy side of LPF

I know. But this would make it one time. We're talking QCW. Not single pulse. This is a continuous medium. What your talking about would be more for a flashlamp laser I think
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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
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
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Last edited by ultimatekaiser; 02-02-2014 at 01:07 AM.
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Old 02-02-2014, 03:08 AM #25
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Default Re: Some Brewster shots for the Gassy side of LPF

The method I am referring to would result in a single pulse propagating in under 10ns, and repeating this, hundreds of times a second.

Basically, the cavity has inside it, an AO piece that flips the polarity, and a PBS that then spits it out.

In theory, the light is already polarized one way due to the brewster window. The PBS will be aligned to let this light pass. Once the polarity is flipped of all the light in the cavity, it will be fed out of the cavity via the PBS element. Resulting in a pulse of the entire cavity. Once the AO element returns to down position, the light passes normally, back on, polarity flipped, light dumped.

The result is a QCW 50W+ HeNe output perpendicular to the cavity.
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442nm 15mW Melles Griot HeCd
445nm 1W
455nm 100mW LaserBTB
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465nm Tunable OMNI 532
467nm 1.8W NDB7675
472nm Tunable Omni 532
473nm 2x 100mW Melles Griot lab heads w/ PSUs
476nm Tunable OMNI 532
488nm Single line 35mW
496nm Tunable OMNI 532
502nm Tunable OMNI 532
514nm Tunable OMNI 532
520nm 40mW MSV2
532nm Various pointers
543nm GreeNe 2mW
568nm ~20mW ArKr whitelight line
589nm 126mW PGL-III-C
594nm Rigel-6; 4.75mW + <1mW
604nm 2x <1mW multiline
609nm Ne Penning mixture Ar line from REO 612nm
612nm HeNe 1mW ML 4 line; Raman 6 line
629nm <1mW Raman 6 line
633nm 1-4mw red HeNe
635nm Raman 6 line
638nm 20mW single mode
640nm Raman 6 line
647nm ~10mW ArKr whitelight Kr line
650nm Raman 6 line
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685nm 20mW
808nm Modded NewWish pen


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Old 02-02-2014, 03:19 AM #26
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Default Re: Some Brewster shots for the Gassy side of LPF

Indeed, the question is more of how much light is lost during the transitions and between the optics? That will determine how much light you actually get out of such a thing.
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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
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Old 02-02-2014, 03:26 AM #27
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Default Re: Some Brewster shots for the Gassy side of LPF

I won't know until I source a product.

I also just realized that they are also limited to peak CW input power. One I was looking at was limited to 5W....
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405nm 500mW
442nm 15mW Melles Griot HeCd
445nm 1W
455nm 100mW LaserBTB
457nm Tunable OMNI 532
465nm Tunable OMNI 532
467nm 1.8W NDB7675
472nm Tunable Omni 532
473nm 2x 100mW Melles Griot lab heads w/ PSUs
476nm Tunable OMNI 532
488nm Single line 35mW
496nm Tunable OMNI 532
502nm Tunable OMNI 532
514nm Tunable OMNI 532
520nm 40mW MSV2
532nm Various pointers
543nm GreeNe 2mW
568nm ~20mW ArKr whitelight line
589nm 126mW PGL-III-C
594nm Rigel-6; 4.75mW + <1mW
604nm 2x <1mW multiline
609nm Ne Penning mixture Ar line from REO 612nm
612nm HeNe 1mW ML 4 line; Raman 6 line
629nm <1mW Raman 6 line
633nm 1-4mw red HeNe
635nm Raman 6 line
638nm 20mW single mode
640nm Raman 6 line
647nm ~10mW ArKr whitelight Kr line
650nm Raman 6 line
658nm LPC-826
685nm 20mW
808nm Modded NewWish pen


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Old 02-02-2014, 04:28 AM #28
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Default Re: Some Brewster shots for the Gassy side of LPF

Ahh, you're looking for high rep rates and perpendicular output! This isn't how the one research paper I found did it, but then they didn't get any major output anyway.
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Old 02-02-2014, 06:07 AM #29
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Default Re: Some Brewster shots for the Gassy side of LPF

I know the paper you're referring to. A couple doctors and I believe the research journal was spun up by a younger Asian gentleman. They used a basic PCAOM. This is why they only got such little output. It was a non-b-window AOM, and PCAOMs are very slow.
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405nm 500mW
442nm 15mW Melles Griot HeCd
445nm 1W
455nm 100mW LaserBTB
457nm Tunable OMNI 532
465nm Tunable OMNI 532
467nm 1.8W NDB7675
472nm Tunable Omni 532
473nm 2x 100mW Melles Griot lab heads w/ PSUs
476nm Tunable OMNI 532
488nm Single line 35mW
496nm Tunable OMNI 532
502nm Tunable OMNI 532
514nm Tunable OMNI 532
520nm 40mW MSV2
532nm Various pointers
543nm GreeNe 2mW
568nm ~20mW ArKr whitelight line
589nm 126mW PGL-III-C
594nm Rigel-6; 4.75mW + <1mW
604nm 2x <1mW multiline
609nm Ne Penning mixture Ar line from REO 612nm
612nm HeNe 1mW ML 4 line; Raman 6 line
629nm <1mW Raman 6 line
633nm 1-4mw red HeNe
635nm Raman 6 line
638nm 20mW single mode
640nm Raman 6 line
647nm ~10mW ArKr whitelight Kr line
650nm Raman 6 line
658nm LPC-826
685nm 20mW
808nm Modded NewWish pen


HeNe/gas reference thread
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