Use the MFR Laser Drill (way OP in an awesome way for sure)? Always wonder what laser focus to use to get what you want? Take a look here for the answer. :
Molecules | Free Full-Text | Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites
Laser Drilling - an overview | ScienceDirect Topics