A laser (which stands for “Light Amplification by Stimulated Emission of Radiation”) is a device that produces spatially and temporally coherent light based on the laser effect.
Thanks to the laser, marking can be done without consumables and welding without adhesive or consumables, all with low powers of the order of tens of watts. No chemical stress (solvents, abrasives), no pollution, little or even no waste, laser processing is the clean technology par excellence!
The laser enables a large number of complex problems concerning these applications to be solved. It is also the ideal tool to give shape to the most original projects with regard to cutting, decoration, texturisation, etc.
A femtosecond laser is a laser that produces ultrashort pulses whose duration is of the order of a few hundred femtoseconds (1 femtosecond = 1 fs = 10-15 seconds).
Thanks to its ultrashort pulses, the products are processed by sublimation of the material, and not by melting and then evaporation, which avoids heat-affected zones (HAT), hence the very precise and clean results.
The only limits of the laser come from the materials themselves: either the materials underreact (do not absorb the wavelength of the laser), or they overreact with heat impacted zones that are not good for the process. An assessment of a sample will quickly determine whether the material is on the long list of materials that can be processed with a laser.