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Old 04-04-2015, 04:17 PM #1
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Default Has anyone measured the divergence of a 405nm single mode laser?

Has anyone here measured the divergence of their 405nm single mode laser pointer with a lens similar to a G2, especially the 16X one DTR sells?


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Old 04-04-2015, 06:53 PM #2
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Default Re: Has anyone measured the divergence of a 405nm single mode laser?

I don't think anyone felt the need to since it's single mode. A guy on here actually showed his build burning his wallet at like 50 feet I think it was? So it's pretty darn good. Let me look for that thread and get back to you.

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1W 405nm laser burning from 90 feet away !!! test update in post 9

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Old 04-04-2015, 08:19 PM #3
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Default Re: Has anyone measured the divergence of a 405nm single mode laser?

Thanks, I kept googling and finally found a reference to a 405nm build someone did with a divergence of 1.0 mRad I was hoping a single mode would be less at 405nm without a beam expander.
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

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Old 04-11-2015, 05:54 AM #4
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Default Re: Has anyone measured the divergence of a 405nm single mode laser?

I heard them of some 405 dioides being under 1 mrad. But heck you could make a 900mw 405nm now and make a 2x beam expander and well balloons will hate you for this one weird trick.
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