50-mJ, 1-kHz Yb:YAG thin-disk regenerative amplifier with 969-nm pulsed pumping

Michal Chyla; Taisuke Miura; Martin Smrž; Patricie Severova; Ondrej Novak; Akira Endo; Tomas Mocek

doi:10.1117/12.2039736

28 February 2014 50-mJ, 1-kHz Yb:YAG thin-disk regenerative amplifier with 969-nm pulsed pumping

Michal Chyla, Taisuke Miura, Martin Smrž, Patricie Severova, Ondrej Novak, Akira Endo, Tomas Mocek

Proceedings Volume 8959, Solid State Lasers XXIII: Technology and Devices; 89590S (2014) https://doi.org/10.1117/12.2039736
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

We are developing a 100-mJ Yb:YAG thin-disk regenerative amplifier operating at 1-kHz repetition rate pumped at zero-phonon-line (968.825-nm¹) and delivering 1-2 ps pulses for EUV plasma sources applicable in science and industry. Recently we achieved the output energy of nearly 50-mJ from a single laser-head cavity with good beam quality (M2<1.2) as well as stable beam-pointing (<4μrad). Applying pulsed pumping with the pulse duration shorter than the upper state lifetime of Yb:YAG helps to reduce the ASE and thermal loading of the thin-disk.

Citation Download Citation

Michal Chyla, Taisuke Miura, Martin Smrž, Patricie Severova, Ondrej Novak, Akira Endo, and Tomas Mocek "50-mJ, 1-kHz Yb:YAG thin-disk regenerative amplifier with 969-nm pulsed pumping", Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 89590S (28 February 2014); https://doi.org/10.1117/12.2039736

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