Investigation of the polymer material perforation time: comparison between two fiber laser wavelengths

We present a study of perforation time for a polymer material. Two different colors of the same polymer were investigated: natural and black. The study compares two different fiber laser wavelengths: 1 μm and 2 μm. The beam diameter on the polymer material was kept the same to provide a fair comparison between wavelengths. The irradiance was varied between 0.1 and 0.5 kW/cm2. Over the studied cases the perforation time was found to be shorter for the 2 μm fiber laser.