The part was marked using a 20 watt q-switched ytterbium fiber laser with 160 mm focal length lens. The 160mm focal length lens has a working distance of 176mm from lens to part. Only a single pass was necessary to etch the light mark using 8 watts of power, with a frequency of 25 kHz and a speed of 25 inches per second. The cycle times for the light mark was 2.01 seconds.