1. Comparative evaluation of HP oxide glass fibers for Q-switched and free-running Er:YAG laser beam propagation
- Author
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Nikoletta Anastasopoulou, Alexander A. Serafetinides, Eirini Papagiakoumou, and Dimitris N. Papadopoulos
- Subjects
Materials science ,Optical fiber ,business.industry ,Far-infrared laser ,Laser ,Q-switching ,Waveguide (optics) ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Optics ,law ,Laser beam quality ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,business ,Beam (structure) ,Er:YAG laser - Abstract
The radiation transmission of a Q-switched and a free-running Er:YAG laser, emitting at 2.94 μm, through high power (HP) oxide glass fibers of 450 μm and 250 μm core diameter was studied. Attenuation measurements were obtained as a function of the laser energy input and as a function of the curvature. The output beam quality was also studied using a beam profiler. Experiments with the same Er:YAG laser but with a 1000 μm core diameter cyclic olefin polymer coated silver hollow glass (COP/Ag) waveguide as the delivery system were performed for comparison. The results are promising as far as the delivery of Q-switched Er:YAG laser radiation is concerned. The fibers exhibited an attenuation below 0.7 dB/m, good output beam profiles, while no damage was observed after extended use.
- Published
- 2003
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