How thick can a fiber laser cut
The laser generating technology that is used to produce sheet laser cutting machines can be upgraded to deliver as much as 12 kW. A laser tube cutter typically produces 5 kW of power, because more power would simultaneously cut through both ends of the tube.
The wavelength of fiber lasers is 1.06 microns. This is 10% less than the wavelength of a CO2 laser beam. The fiber laser emits a beam with a shorter wavelength that is more easily absorbed and reflected by reflective materials than a CO2 laser. Fiber laser cutting machines are able to cut brass, copper and other reflective materials. Be aware that the CO2 laser beam can damage not only the machine's lens but also the entire beam path. This risk is eliminated by using a fiber-optic cables for the beam path.