METHOD FOR INTERNAL LASER MARKING

摘要

The invention concerns a method for internal laser marking in transparent materials, for example for marking an identifier (5) for an object made of transparent material (6). The invention is characterized in that a diode-pumped femtosecond laser source (1) is used for non-aggressive high-contrast marking to generate laser pulses (13) which are successively focused on different points (23) of the marking (5) to be produced and enabling high-speed marking operations, typically faster than 0.1 mm² per second to be performed.