Fiber-coupled three-micron pulsed laser source for CFRP laser treatment

Sebastian Nyga; David Blass; Veronika Katzy; Thomas Westphalen; Bernd Jungbluth; Hans-Dieter Hoffmann

doi:10.1117/12.2288343

23 February 2018 Fiber-coupled three-micron pulsed laser source for CFRP laser treatment

Sebastian Nyga, David Blass, Veronika Katzy, Thomas Westphalen, Bernd Jungbluth, Hans-Dieter Hoffmann

Proceedings Volume 10511, Solid State Lasers XXVII: Technology and Devices; 105110G (2018) https://doi.org/10.1117/12.2288343
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We present a laser source providing up to 18 W and 1.5 mJ at a wavelength of 3 μm. The output is generated by frequency conversion of randomly polarized multimode radiation at 1064 nm of an Nd:YAG laser in a two-stage conversion setup. The frequency converter comprises an optical parametric oscillator and a subsequent optical parametric amplifier using PPLN as nonlinear medium in both stages. To implement fiber-based beam delivery for materials processing, we coupled the output at 3 μm to a multimode ZrF₄-fiber. This source was then used to remove epoxy resin from the surface of CFRP samples.

Citation Download Citation

Sebastian Nyga, David Blass, Veronika Katzy, Thomas Westphalen, Bernd Jungbluth, and Hans-Dieter Hoffmann "Fiber-coupled three-micron pulsed laser source for CFRP laser treatment", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105110G (23 February 2018); https://doi.org/10.1117/12.2288343

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