What diameter can be drilled with LADD?

The current configuration is one to 10 mm drill bit size. Larger sizes are possible, in line with traditional drills.

What is the smallest diameter that can be drilled with LADD?

About 100 microns in diameter.

What is the maximum depth that can be drilled with LADD?

As with traditional drills, it depends on the tool size. Traditional depth to diameter ratios are, such as 10:1 are already achievable.

How does the laser affect the material?

This laser raises the material/work piece temperature at the contact point with the tool to soften the work piece material and achieve lower cutting forces and reduced  tool wear and obtain a better/cleaner hole.

What would be the speed of drilling as a function of drilling diameter and depth?

This aspect of the process is similar to and even better than traditional drilling processes as using laser means we can drill more aggressively. As with conventional processes the speed depends on the material and its mechanical, thermal, and optical properties due to laser absorption (to achieve heating and thermal softening).

What is the resulting surface texture of the drilled surface?

Depending on material, expect to get a better surface finish, often eliminating the need for post processing, such as polishing. Also because of material softening, expect to get minimal fracture in entrance and exit of the hole.