%0 Conference Paper %1 didychenko.2023.radially %A Didychenko, Denys %A Esser, Stefan %A Beirow, Frieder %A Graf, Thomas %A Ahmed, Marwan Abdou %B 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) %D 2023 %K %P 1-1 %R 10.1109/CLEO/Europe-EQEC57999.2023.10231857 %T Radially Polarized Ceramic Yb:Lu2O3 Thin-Disk Laser %X In this contribution, we present the generation of the radially polarized beam with polycrystalline Yb-doped lutetium oxide (Yb:Lu2O3) as a gain medium in a thin-disk laser geometry operated in continuous-wave. Cylindrical vector beams, and in particular radially or azimuthally polarized beams, are known to be used in material processing in order to increase processes efficiency for cutting, drilling and welding 1, 2. Compared to Yb:YAG, Yb:Lu2O3 exhibit broader emission bandwidth 3 of 13 nm, which makes it suitable for the generation of ultrashort pulses (<100 fs), and higher thermal conductivity 4 of 12 W/mK allowing for high-power scaling thanks to a more efficient heat removal. Furthermore, it is easier to produce polycrystalline Yb:Lu2O3 ceramics compared to single crystals due to the lower melting temperature of 1700°C 5. An additional advantage of ceramics is that, thanks to their manufacturing process, the crystals are less exposed to tensions, therefore, exhibiting lower depolarization losses.

@inproceedings{didychenko.2023.radially, abstract = {In this contribution, we present the generation of the radially polarized beam with polycrystalline Yb-doped lutetium oxide (Yb:Lu2O3) as a gain medium in a thin-disk laser geometry operated in continuous-wave. Cylindrical vector beams, and in particular radially or azimuthally polarized beams, are known to be used in material processing in order to increase processes efficiency for cutting, drilling and welding [1], [2]. Compared to Yb:YAG, Yb:Lu2O3 exhibit broader emission bandwidth [3] of 13 nm, which makes it suitable for the generation of ultrashort pulses (<100 fs), and higher thermal conductivity [4] of 12 W/mK allowing for high-power scaling thanks to a more efficient heat removal. Furthermore, it is easier to produce polycrystalline Yb:Lu2O3 ceramics compared to single crystals due to the lower melting temperature of 1700°C [5]. An additional advantage of ceramics is that, thanks to their manufacturing process, the crystals are less exposed to tensions, therefore, exhibiting lower depolarization losses.}, added-at = {2024-05-07T18:05:56.000+0200}, author = {Didychenko, Denys and Esser, Stefan and Beirow, Frieder and Graf, Thomas and Ahmed, Marwan Abdou}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2d29e7b10072cc83ddae41ab53ef063c8/denysdidychenko}, booktitle = {2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)}, doi = {10.1109/CLEO/Europe-EQEC57999.2023.10231857}, interhash = {78b16ab67a2e8dcf4eca6d0773de5f13}, intrahash = {d29e7b10072cc83ddae41ab53ef063c8}, issn = {2833-1052}, keywords = {}, month = {June}, pages = {1-1}, timestamp = {2024-05-07T16:05:56.000+0200}, title = {Radially Polarized Ceramic Yb:Lu2O3 Thin-Disk Laser}, year = 2023 }