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20 March 2013 Optical fibers for 355nm pulsed lasers and high-power broadband light sources
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Abstract
In the past, the spectral stability of multimode UV-fibers has been mainly characterized using deuterium lamps with a broadband spectrum in the DUV. In meantime, new UV light-sources with higher powers are available. For example, improved pulsed Nd:YAG lasers with higher harmonics or high-power broadband plasma lamps are interesting candidates for new systems and applications. Because of better beam quality, multimode all-silica fibers with core diameter smaller than 100 μm can be recommended. A new step-index fiber with a large cladding-to-core ratio will be introduced. Using the new light-sources, the degradation during UV-light delivery will be described in detail, comparing the hydrogen-loaded and non-loaded version of this fiber. These results of UV-induced damage will be compared to a commercially available improved 100 μm UV-fiber damaged with deuterium lamp.
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Jan Heimann, Karl-Friedrich Klein, Cornell P. Gonschior, Moritz Klein, and Georg Hillrichs "Optical fibers for 355nm pulsed lasers and high-power broadband light sources", Proc. SPIE 8576, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIII, 85760K (20 March 2013); https://doi.org/10.1117/12.2005146
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