Hi,
I would like to build with commercially available lenses a beam expander with controlled/regulated up to 4.5x beam magnification. I have theoretical knowledge of beam expanders/reducers etc and built a few but with fixed magnification. Ideally, it would have to collimate the laser beam with a divergence angle of 0.6 mrad and would be placed within the Rayleigh range, which is 1229 mm. Any suggestion on how to take on this design?
Also, going through Zemax “Design Templets” I came across “laser beam expander” and “zoom beam expander” designs. What is the difference?
Thanks a lot,
Regards,
Marzanna