I don't want any deflection, reflection, refraction.
Well then it won't work, seeing as lenses work by refracting light. Not to mention all optics will reflect some of the light entering them...
Can a basic glass magnifying glass combine 4 laser to one point safely? I don't want any deflection, reflection,refraction.
And tips on getting the best lense of high quality grade of glass magnifying ?
The best you can do is focus all 4 individually onto a single focal point and that is the only point where there will be combined output power power at a single point.
I thought that's what OP was asking about...?
I agree OP - if you want to combine them into a single beam that's not the way to go about it.
You can focus them all to roughly the same spot with a lens, but even that isn't ideal. You'd get better results by combining and then focusing.
She could use 2 PBS to reduce to 2 beams then a single PBS cube t get one beam and then focus that onto a single focal point.
No she couldn't, that isn't how PBS cubes work, the last PBS would split the two beams you've already combined back into individual beams and you'd be exactly where you started before the last PBS cube.
Oops you are 100% right---not thinking-brain fog -- am in the middle of 3 other things at the same time. lol
Best if she can say what it is she wants to accomplish. Whatever it is it is probably not as easily done in the real world as in imagination.
Hi all thanks you for ur quick to help
I want to achieve what Diachi linked me with styropyros 200W laser principle. Not 200W's though..
Will a normal household magnifying glass work? Or do I need something offline abit more purer grade. Thanks