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Thermal-stress-induced birefringence management of complex laser systems by means of polarimetry

  1. 1.
    0564270 - FZÚ 2023 RIV DE eng J - Článek v odborném periodiku
    Slezák, Ondřej - Sawicka-Chyla, Magdalena - Divoký, Martin - Pilař, Jan - Smrž, Martin - Mocek, Tomáš
    Thermal-stress-induced birefringence management of complex laser systems by means of polarimetry.
    Scientific Reports. Roč. 12, č. 1 (2022), č. článku 18334. ISSN 2045-2322. E-ISSN 2045-2322
    Grant CEP: GA MŠMT EF15_006/0000674
    GRANT EU: European Commission(XE) 739573 - HiLASE CoE
    Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
    Institucionální podpora: RVO:68378271
    Klíčová slova: TIPCL * thermally-induced polarization * Mueller matrix
    Obor OECD: Optics (including laser optics and quantum optics)
    Impakt faktor: 4.6, rok: 2022
    Způsob publikování: Open access

    The novel method of the thermally-induced polarization changes driven power losses (TIPCL) analysis in the complex laser systems has been developed. The measurement has been tested on the amplifier chain of the 100 J / 10 Hz laser system ‘Bivoj’ operated at HiLASE Centre. By the usage of the measured non-uniform Mueller matrix of the amplifier chain, the optimization of the ideal input and output polarization state has been calculated numerically. The results of the optimization have been applied to the laser system, thus reducing the TIPCL from originally observed more than 33% to 7.9% for CW beam and to 9% for pulsed laser beam, respectively. To the best of our knowledge, this result represents the most efficient TIPCL suppression method for complex laser systems so far. The method also allows the definition of the ideal fully polarized non-uniform pre-compensation of input beam consequently suffering from zero TIPCL.

    Trvalý link: https://hdl.handle.net/11104/0335970

     
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