Bundle of tapered fibers for the transmission of high-power excimer laser pulses

Hermine Hitzler; Norbert Leclerc; Christoph Pfleiderer; Juergen M. Wolfrum; Karl-Otto Greulich; Karl-Friedrich Klein

doi:10.1117/12.46947

1 September 1991 Bundle of tapered fibers for the transmission of high-power excimer laser pulses

Hermine Hitzler, Norbert Leclerc, Christoph Pfleiderer, Juergen M. Wolfrum, Karl-Otto Greulich, Karl-Friedrich Klein

Proceedings Volume 1503, Excimer Lasers and Applications III; (1991) https://doi.org/10.1117/12.46947
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

For the transmission of high-power excimer laser radiation in the kilowatt range, a flexible bundle of tapered quartz fibers is presented. Thirty fibers with a tapered coupling section are assembled in a bundle, which is tested with an excimer laser providing 2 J pulse energy at repetition rates of up to 20 pulses per second. The bundle showed good transmission qualities at 308 nm wavelength with an output power of 0.5 J/pulse. Catastrophic damage of fibers or other bundle elements did not occur during irradiation. The transmitted energy remained constant over the energy range tested with short irradiation times and low frequencies and is sufficient for material processing. At present, the transmission efficiency of the bundle is about 25%.

Citation Download Citation

Hermine Hitzler, Norbert Leclerc, Christoph Pfleiderer, Juergen M. Wolfrum, Karl-Otto Greulich, and Karl-Friedrich Klein "Bundle of tapered fibers for the transmission of high-power excimer laser pulses", Proc. SPIE 1503, Excimer Lasers and Applications III, (1 September 1991); https://doi.org/10.1117/12.46947

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