What Kind of Laser is this?

Hey all,

While searching for how to laser cut leather I found the following videos. What are they using to do this at such an incredable speed?

https://www.youtube.com/watch?v=_qZmI4PmPXw
https://www.youtube.com/watch?v=lf0OHO9f8Uc
https://www.youtube.com/watch?v=lRF8BWKWlWo


are they specialized lasers for fabric?

(.-.)

What Kind of Laser is this?