Summary

I have added two lenses in order to create a waist of 330um for when the PMC will be implemented.

Not satisfied about the size of the beam. This has to be improved, but we are close enough. I am thinking

to put the PMC in place and mode match the laser beam to the PMC, in order to have a better reference.

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The two lenses are 114.5mm and 401mm focal length rispectively, as shown in the attached schematic.

At moment the beam for the PMC (after the two lenses) is the following: