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Amplification of picosecond pulses to 100 W by an Yb:YAG thin-disk with CVBG compressor

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    0485595 - FZÚ 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    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]
    Grant CEP: GA MŠk ED2.1.00/01.0027; GA MŠk EE2.3.20.0143
    Grant ostatní:HILASE(XE) CZ.1.05/2.1.00/01.0027; OP VK 6(XE) CZ.1.07/2.3.00/20.0143
    Institucionální podpora: RVO:68378271
    Klíčová slova: thin-disk laser * Yb:YAG * high power laser * picosecond pulse * regenerative amplifier * chirped volume Bragg grating * zero-phonon line * fundamental spatial mode
    Kód oboru RIV: BH - Optika, masery a lasery
    Obor OECD: Optics (including laser optics and quantum optics)
    http://proceedings.spiedigitallibrary.org/volume.aspx?volumeid=17179

    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.
    Trvalý link: http://hdl.handle.net/11104/0280548

     
     
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