Old 02-24-2017, 01:03 PM #17
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Default Re: Question about making a long duty cycle laser

Yes, I agree.

Edit: I am being too trigger happy with as much trolling as we have had lately. It's a downward spiral, however I was certain someone would balance it back before the day ended as it wasn't really justified. My bones feel it with this guy and perhaps it's just troll influence causing that, this post ought to make him (not meaning to point at this guy) happy to see the negative influence to the forum, my bad.


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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

Last edited by Alaskan; 02-24-2017 at 01:34 PM.
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