Old 01-22-2010, 12:16 AM #17
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Default Re: Favorite Laser and Dream Laser

My favorite laser is a toss up between my multiline argons, my huge HeNe, and my Spyder 1 200 green handheld, they each have unique features

My dream laser could be many things, I'm on the lookout for a HeCd, Cu Vapor, Kr, ArKr, etc - gas lasers are awesome


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Old 01-22-2010, 01:47 AM #18
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Default Re: Favorite Laser and Dream Laser

Yea a full color pen @ 1W now I'm with you bud!


Quote:
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My favorite for now is my TEC 6X labby.

My dream laser would be a "all visible wavelengths" 1W pen-sized laser (not RGB)....
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Old 01-22-2010, 01:58 AM #19
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Default Re: Favorite Laser and Dream Laser

My favorite laser would be my 30mW kaleidescope green. My dream laser would be a 1W blue ray laser.
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Old 01-22-2010, 02:58 PM #20
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Default Re: Favorite Laser and Dream Laser

Favorite? The 1W lab unit that's coming...

Dream? I high-powered 556nm unit.

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Old 02-16-2010, 10:08 PM #21
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Default Re: Favorite Laser and Dream Laser

Quote:
Originally Posted by aryntha View Post
I bet that CNI -could- make a 488nm PGL or pen.
I Agree I would love to see that

Mi favorite laser is mi-----473nm 10mW LSR473NL series blue laser module

Mi dream laser is a Novalux Protera DPSS - 488nm 5mW or any at that wavelength (488nm)
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Old 02-16-2010, 11:59 PM #22
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Default Re: Favorite Laser and Dream Laser

Quote:
Originally Posted by lazerman121 View Post
I Agree I would love to see that

Mi favorite laser is mi-----473nm 10mW LSR473NL series blue laser module

Mi dream laser is a Novalux Protera DPSS - 488nm 5mW or any at that wavelength (488nm)
Why not build a 490nm using the IR from a 980nm pump diode through a frequency-doubling crystal (KTi0P04).

980/2 = 490

Fav. laser = Daguin build 190mW bluray
Drm. laser = 200mW 593nm: DPSS CW Yellow Laser, 593nm
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Old 02-17-2010, 12:37 AM #23
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Default Re: Favorite Laser and Dream Laser

Quote:
Originally Posted by Ash View Post
Why not build a 490nm using the IR from a 980nm pump diode through a frequency-doubling crystal (KTi0P04).

980/2 = 490

[/url]
ok Im lost can you give me some more info on how to do that
Where do i get a frequency-doubling crystal from
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Old 02-17-2010, 12:59 AM #24
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Default Re: Favorite Laser and Dream Laser

Try VLOC or CASIX. Google 'em.. both excellent companies. Also search ebay with their chemical names:

KTP: typically used for green lasers only.

LBO: Much broader range of possible wavelengths, including green. Very temp. sensitive.

Those are the most common and least expensive..

@Ash: That's direct doubling. It's very possible, the Coherent Sapphire @ 488nm is an example IIRC, but to do it requires some serious extra doodads to maintain its stability. Not likely to see a hobbyist accomplish the feat. If a hobbyist were to get doubled output as simply as shining the diode at the crystal, the beam specs would be crap..
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Old 02-17-2010, 05:37 PM #25
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Default Re: Favorite Laser and Dream Laser

Quote:
Originally Posted by ElektroFreak View Post
@Ash: That's direct doubling. It's very possible, the Coherent Sapphire @ 488nm is an example IIRC, but to do it requires some serious extra doodads to maintain its stability. Not likely to see a hobbyist accomplish the feat. If a hobbyist were to get doubled output as simply as shining the diode at the crystal, the beam specs would be crap..
Granted. But, I thought I would give it a shot in my spare time. Got some extra KTPs from dead greenies.
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Old 02-17-2010, 05:52 PM #26
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Default Re: Favorite Laser and Dream Laser

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Originally Posted by ElektroFreak View Post
My favorite laser is my 50mW CNI 473nm labby. It actually produces over 100mW of beautiful sky-blue light.

My dream laser would be a Coherent Verdi. Ring Cavity IIRC, 532nm, top notch beam specs and stability. But it's about $xx,xxx out of my price range.



Think more in the $$$$$$ range
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Old 02-17-2010, 06:00 PM #27
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Default Re: Favorite Laser and Dream Laser

My favourite is my 150mW pocket greenie from O-like

My dream laser is a white fusion kit with high powered 473 instead of 405
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Old 02-17-2010, 06:49 PM #28
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Default Re: Favorite Laser and Dream Laser

My favorite is my green portable, my dream will soon come true, a 2.4 Watt 808nm Diode laser from o-like. I like power.
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Old 02-17-2010, 09:54 PM #29
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Default Re: Favorite Laser and Dream Laser

there are hundreds of them witch one would i use to make 490nm
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Old 02-17-2010, 10:04 PM #30
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Default Re: Favorite Laser and Dream Laser

My fav is my 50mW 473nm olike labby

My dream laser would be a multi watt 473nm laser
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Old 02-17-2010, 11:06 PM #31
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Default Re: Favorite Laser and Dream Laser

Quote:
Originally Posted by lazerman121 View Post
there are hundreds of them witch one would i use to make 490nm
Hundreds? I think not.

Witch one?


You are looking for a nonlinear optic crystal that has high efficiency and second harmonic generation properties. AFAIK KTiOPO4 (KTP) is one of the best options for this, with a very high melting point (1172 oC) and high optic efficiency, it would be my first choice.

But hey, WTF do I know?

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Old 02-18-2010, 01:23 AM #32
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Default Re: Favorite Laser and Dream Laser

lol

KTP sucks below 500nm.. LBO or maybe LiNBO3 or KNBO3 should be more suited. They're very temperature dependent, though, which introduces a lot of extra complexity if you're looking for anything usable in terms of a beam.

And Ben........... I'm better looking than you
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Laser Resources (for n00bs and veterans alike!)

Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.

Last edited by ElektroFreak; 02-18-2010 at 06:02 PM. Reason: errant colon
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