Old 10-25-2016, 04:18 PM #1
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Default WTB: high power Green laser

Looking to get my second high power greenie laser, in either a 520nm diode or a 532nm DPSS. looking for a pointer or a portable laser. Send me an offer via PM, or at my email: tuskiomisham@gmail.com Thanks!



Last edited by tuskiomi; 10-25-2016 at 05:36 PM.
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Old 10-25-2016, 05:05 PM #2
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Default Re: WTB: high power Green laser

If you go with 520nm get at least a 3x expander, their divergence is higher than DPSS unless single mode.
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Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

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Old 10-25-2016, 05:23 PM #3
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Default Re: WTB: high power Green laser

Quote:
Originally Posted by Alaskan View Post
If you go with 520nm get at least a 3x expander, their divergence is higher than DPSS unless single mode.
yes, I saw pictures of yours, It was an amazing sight!
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Old 10-25-2016, 05:30 PM #4
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Default Re: WTB: high power Green laser

Does it have to be a pointer My 200mW suwtech Lab is for sale.
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Old 10-25-2016, 05:37 PM #5
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Default Re: WTB: high power Green laser

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Originally Posted by lazerman121 View Post
Does it have to be a pointer My 200mW suwtech Lab is for sale.
I'm looking for a pointer or portable laser. either works.
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Old 10-25-2016, 05:48 PM #6
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Default Re: WTB: high power Green laser

Quote:
Originally Posted by tuskiomi View Post
I'm looking for a pointer or portable laser. either works.
Well I don't own pointers or portables any more xD.
Good luck.
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Old 10-25-2016, 05:54 PM #7
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Default Re: WTB: high power Green laser

Although DPSS laser pointers are temperature sensitive, they can have very fine small diameter beams with decent divergence, expand them a bit and you can have very low divergence without the beam becoming too fat. For myself, I like fat beams but some folk don't, they want to see all the light in a very thin beam leaving the pointer, but of course, the thinner the beam leaving the wider it will be hundreds to thousands of feet out.

I would have no second thoughts buying from Lazerman121 at all.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
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Old 10-25-2016, 07:20 PM #8
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Default Re: WTB: high power Green laser

Quote:
Originally Posted by lazerman121 View Post
Well I don't own pointers or portables any more xD.
Good luck.

what is the divergence? I saw your thread.
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Old 10-25-2016, 08:09 PM #9
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Default Re: WTB: high power Green laser

Not sure the specs rate it at 1mRad But I rebuilt the optical cavity when i got it as it needed cleaning I think I measured it at 1.5 but ill need to dig up my notes on it. Spec sheet here. http://www.ii-vi-suwtech.com/product.../DPGL-2200.pdf
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488nm 5mW Novalux Protera DPSS Laboratory Unit Review
515nm 20mW module
532nm 200mW Suwtech Lab laser
532nm 100mW Suwtech Lab laser

543.5nm .5mW Research Electro-optics Inc Helium Neon
561nm 4.98mW CNI GLP OEM module Review
593.5nm 100mW CNI Lab Dead driver
604nm LHOR-0150 2nd line
612nm 2.1mW LHOR-0150
632.8nm Melles Griot Bare Tube (05-LHR-004-347)
632.8nm .4mW Spectra Physics 155 HeNe
Sold
635nm 15mW Module
650nm 5mW red
1 Laservision Style F12.T5H04.5000 (O_O)

IR filters FS

Last edited by lazerman121; 10-25-2016 at 08:10 PM.
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