We report on the generation of a continuous-wave (CW) radially polarized beam with an Yb:Lu2O3 polycrystalline ceramic disk in a thin-disk laser (TDL) oscillator. A circular grating-waveguide mirror (CGWM) with a high polarization discrimination given by a reflectivity difference between the two orthogonal polarization states of 44.6\% was used as a polarization-selective cavity end-mirror. An output power of 175 W was achieved with an optical efficiency of 39.6\%. A high degree of radial polarization of 96.2\% and a beam propagation factor of M2hor.þinspace=þinspace2.05 and M2ver.þinspace=þinspace2.32 were measured at the maximum output power.
%0 Journal Article
%1 Didychenko2023
%A Didychenko, Denys
%A Esser, Stefan
%A Beirow, Frieder
%A Savchenko, Anton
%A Pruss, Christof
%A Graf, Thomas
%A Abdou Ahmed, Marwan
%D 2023
%J Applied Physics B
%K laser myown peer
%N 9
%P 146
%R 10.1007/s00340-023-08089-6
%T Generation of a radially polarized beam in a polycrystalline ceramic Yb:Lu2O3 thin-disk laser
%U https://doi.org/10.1007/s00340-023-08089-6
%V 129
%X We report on the generation of a continuous-wave (CW) radially polarized beam with an Yb:Lu2O3 polycrystalline ceramic disk in a thin-disk laser (TDL) oscillator. A circular grating-waveguide mirror (CGWM) with a high polarization discrimination given by a reflectivity difference between the two orthogonal polarization states of 44.6\% was used as a polarization-selective cavity end-mirror. An output power of 175 W was achieved with an optical efficiency of 39.6\%. A high degree of radial polarization of 96.2\% and a beam propagation factor of M2hor.þinspace=þinspace2.05 and M2ver.þinspace=þinspace2.32 were measured at the maximum output power.
@article{Didychenko2023,
abstract = {We report on the generation of a continuous-wave (CW) radially polarized beam with an Yb:Lu2O3 polycrystalline ceramic disk in a thin-disk laser (TDL) oscillator. A circular grating-waveguide mirror (CGWM) with a high polarization discrimination given by a reflectivity difference between the two orthogonal polarization states of 44.6{\%} was used as a polarization-selective cavity end-mirror. An output power of 175 W was achieved with an optical efficiency of 39.6{\%}. A high degree of radial polarization of 96.2{\%} and a beam propagation factor of M2hor.{\thinspace}={\thinspace}2.05 and M2ver.{\thinspace}={\thinspace}2.32 were measured at the maximum output power.},
added-at = {2024-02-08T09:50:59.000+0100},
author = {Didychenko, Denys and Esser, Stefan and Beirow, Frieder and Savchenko, Anton and Pruss, Christof and Graf, Thomas and Abdou Ahmed, Marwan},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2a8cd5eda61b423aad98f724397d8d49a/thomas_graf},
day = 24,
doi = {10.1007/s00340-023-08089-6},
interhash = {54c943dbffa95b1fe66a47b1c3f27a27},
intrahash = {a8cd5eda61b423aad98f724397d8d49a},
issn = {1432-0649},
journal = {Applied Physics B},
keywords = {laser myown peer},
month = aug,
number = 9,
pages = 146,
timestamp = {2024-02-08T09:50:59.000+0100},
title = {Generation of a radially polarized beam in a polycrystalline ceramic Yb:Lu2O3 thin-disk laser},
url = {https://doi.org/10.1007/s00340-023-08089-6},
volume = 129,
year = 2023
}
