%0 Journal Article %1 Negel2017 %A Negel, Jan-Philipp %A Loescher, André %A Dannecker, Benjamin %A Oldorf, Paul %A Reichel, Stefanie %A Peters, Rigo %A Abdou Ahmed, Marwan %A Graf, Thomas %D 2017 %J Applied Physics B %K Amplifier ThinDisk %N 5 %P 156 %R 10.1007/s00340-017-6739-2 %T Thin-disk multipass amplifier for fs pulses delivering 400 W of average and 2.0 GW of peak power for linear polarization as well as 235 W and 1.2 GW for radial polarization %U https://doi.org/10.1007/s00340-017-6739-2 %V 123 %X We report on an Yb:YAG thin-disk multipass amplifier delivering linearly polarized laser pulses with a pulse duration of 885 fs at an average output power of 400 W and a repetition rate of 200 kHz, corresponding to a peak power of 2.0 GW. This is the highest average output power reported for thin-disk multipass amplifiers delivering pulses with peak powers in excess of 1 GW and it confirms the suitability of thin-disk multipass amplifiers to reach high average output and peak powers at the same time. The amplifier was seeded by a regenerative amplifier delivering laser pulses with a pulse duration of 805 fs and an average power of 40 W. We investigated the influence of self-phase-modulation on the amplified beam and compared it to results with lower peak intensities at a repetition rate of 800 kHz. Furthermore, we report on the amplification of a radially polarized beam leading to 235 W of average output power and 1.2 GW of peak power (at a pulse duration of 888 fs). To the best of our knowledge, this is the highest average output power demonstrated so far for radially polarized GW peak-level laser pulses.

@article{Negel2017, abstract = {We report on an Yb:YAG thin-disk multipass amplifier delivering linearly polarized laser pulses with a pulse duration of 885 fs at an average output power of 400 W and a repetition rate of 200 kHz, corresponding to a peak power of 2.0 GW. This is the highest average output power reported for thin-disk multipass amplifiers delivering pulses with peak powers in excess of 1 GW and it confirms the suitability of thin-disk multipass amplifiers to reach high average output and peak powers at the same time. The amplifier was seeded by a regenerative amplifier delivering laser pulses with a pulse duration of 805 fs and an average power of 40 W. We investigated the influence of self-phase-modulation on the amplified beam and compared it to results with lower peak intensities at a repetition rate of 800 kHz. Furthermore, we report on the amplification of a radially polarized beam leading to 235 W of average output power and 1.2 GW of peak power (at a pulse duration of 888 fs). To the best of our knowledge, this is the highest average output power demonstrated so far for radially polarized GW peak-level laser pulses.}, added-at = {2018-04-20T12:13:56.000+0200}, author = {Negel, Jan-Philipp and Loescher, Andr{\'e} and Dannecker, Benjamin and Oldorf, Paul and Reichel, Stefanie and Peters, Rigo and Abdou Ahmed, Marwan and Graf, Thomas}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2140d25a19b51e794c1a130623ea71a53/thomas_graf}, day = 26, doi = {10.1007/s00340-017-6739-2}, interhash = {a94d5b8d1594b6b40c71a53228645bc5}, intrahash = {140d25a19b51e794c1a130623ea71a53}, issn = {1432-0649}, journal = {Applied Physics B}, keywords = {Amplifier ThinDisk}, month = apr, number = 5, pages = 156, timestamp = {2018-04-20T10:14:50.000+0200}, title = {Thin-disk multipass amplifier for fs pulses delivering 400 W of average and 2.0 GW of peak power for linear polarization as well as 235 W and 1.2 GW for radial polarization}, url = {https://doi.org/10.1007/s00340-017-6739-2}, volume = 123, year = 2017 }