A LASER WITH A MINIMUM OF A PHASE USED IN OUTER BIOLOGY, AT LEAST THE ENERGY OF THE LASER SOURCES, SUPPORTED THROUGH THE FOCUSED STRAIGHT AND THE STRAIGHT QUALITY FACTOR

摘要

The invention relates to method for cutting a part using a laser beam, involving the use of laser beam generation means comprising at least one ytterbium-based fibre having a wavelength of between 1 and 4 m in order to generate the laser beam. The laser beam is selected to have a power of less than 100 kW, a power density of at least 1 MW/cm2, a focused beam diameter of at least 0.1 mm and a quality factor (BPP) of less than 10 mm·mrad.