After a very in-depth analysis, we were able to achieve excellent results with our 20-watt q-switched ytterbium fiber laser. We achieved the highest quality marks using a 2 pass process. The first pass was simply to remove a large percentage of the material and the second pass was used to clean the mark up as much as possible to brighten the overall contrast. In addition, the samples labeled “Final” are several other samples that show various marks produced at a number of different settings. For further details, please contact Laser Photonics at 407 829-2613 or use our online contact form.