Journal
OPTICS AND LASER TECHNOLOGY
Volume 43, Issue 8, Pages 1448-1452Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2011.04.017
Keywords
Er:YAG laser; Fluoride glass fibers; Multimode mid-infrared fibers
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Measurement of the transmission laser radiation from Q-switched and free-running Er:YAG lasers operating at 2.94 mu m through fluoride glass multimode optical fibers of 448, 465 and 620 mu m core diameter were performed. Attenuation measurements were obtained as a function of the laser energy input, of the bending angle and of the radius of curvature. The fibers exhibited low attenuation under straight and bent conditions. The output beam quality was also studied using the appropriate beam profiler. The output beam profiles showed a central multi-spiked energy distribution. (C) 2011 Elsevier Ltd. All rights reserved.
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