0485595 - FZÚ 2018 RIV US eng C - Conference Paper (international conference)
Smrž, Martin - Chyla, Michal - Novák, Ondřej - Miura, Taisuke - Endo, Akira - Mocek, Tomáš
Amplification of picosecond pulses to 100 W by an Yb:YAG thin-disk with CVBG compressor.
High-Power, High-Energy, and High-Intensity Laser Technology II. Bellingham: SPIE, 2015 - (Hein, J.), s. 1-7, č. článku 951304. Proceedings of SPIE, 9513. ISBN 978-1-62841-634-3. ISSN 0277-786X.
[Conference on High-Power, High-Energy, and High-Intensity Laser Technology II. Prague (CZ), 14.04.2015-15.04.2015]
R&D Projects: GA MŠMT ED2.1.00/01.0027; GA MŠMT EE2.3.20.0143
Grant - others:HILASE(XE) CZ.1.05/2.1.00/01.0027; OP VK 6(XE) CZ.1.07/2.3.00/20.0143
Institutional support: RVO:68378271
Keywords : thin-disk laser * Yb:YAG * high power laser * picosecond pulse * regenerative amplifier * chirped volume Bragg grating * zero-phonon line * fundamental spatial mode
OECD category: Optics (including laser optics and quantum optics)
Result website:
http://proceedings.spiedigitallibrary.org/volume.aspx?volumeid=17179DOI: https://doi.org/10.1117/12.2178900

High average power picosecond lasers have become an import tool in many fields of science and industry. We report on progress in development of 100 kHz, 100 W picosecond Yb:YAG thin disk laser amplifier with fundamental spatial mode at the HiLASE laser center. More efficient direct pumping to an upper laser level has been employed in order to suppress thermal loading of the thin disk active medium and to increase system stability. We also carefully analyzed and described all benefits of this so called zero phonon line pumping (ZPL) for fundamental spatial mode cavity design and successfully increased extraction efficiency of the amplifier to > 28 %. A novel approach of high-power picosecond pulse compression using a space saving and easy-to-align chirped-volume Bragg grating (CVBG) with high dispersion and high net efficiency approaching 88 % allowed us to build a robust and highly compact pulse compressor.
Permanent Link: http://hdl.handle.net/11104/0280548