Fiber
The CO2 resonator requires much more energy and is larger. Electricity is used to combine gases to create the laser beam. Mirrors aid in the light's intensity and prepare it for exiting the resonator. The beam must travel along a path that includes several cooled mirrors to reach the lens after it has exited the resonator. This causes the beam to lose power and quality.
A CO2 laser requires more power to produce than a fiber laser. This makes it less efficient and has lower wall plug efficiency. You will also need to use more power for the large CO2 laser chillers. Because the fiber laser-resonator's wall-plug efficiency is greater than 40 percent, it uses less power as well as less of your in high-demand flooring space.