Guiding High Energy Laser Pulses Through Hollow Core Fibers

The purpose of our research is to study uncoated hollow fibers for their potential applications in medicine, manufacturing and scientific research. The goal is to characterize the efficiency, beam quality and polarization of the transmitted beam for uncoated hollow fibers with a core diameter of 750μm. Optimum results are obtained with proper fiber tip preparation and efficient beam coupling. Results for a straight 2m section of uncoated fiber show an attenuation of 3.35 db/m and conservation of linear polarization. In the future, investigation of the polarization and attenuation effect of bending as well as shorter lengths will be completed.