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Collimating Lenses

Pontiacg5

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Depends, some are small ~40W some get quite big into the 100's of watts

You can't really say what will cut what, there are too many variables. I would put a guess at about 5 watts, but that would be with a good focusing lens and a steady hand.

You are not going to get this power in a handheld pointer type laser, you might be able to get a fiber coupled laser but it would have a bulky power supply and probably need to be water or TEC cooled at these powers.
 





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