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Temperature-dependent cross section spectra for thulium-doped fiber lasers

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    0574761 - ÚFE 2024 RIV US eng J - Článek v odborném periodiku
    Jiříčková, Bára - Grábner, Martin - Jauregui, C. - Aubrecht, Jan - Schreiber, Ondřej - Peterka, Pavel
    Temperature-dependent cross section spectra for thulium-doped fiber lasers.
    Optics Letters. Roč. 48, č. 3 (2023), s. 811-814. ISSN 0146-9592. E-ISSN 1539-4794
    Grant CEP: GA ČR(CZ) GA23-05701S
    Institucionální podpora: RVO:67985882
    Klíčová slova: Fiber amplifiers * Thulium-doped fibers * emperature dependent
    Obor OECD: Optics (including laser optics and quantum optics)
    Impakt faktor: 3.6, rok: 2022
    Způsob publikování: Omezený přístup
    https://doi.org/10.1364/OL.479313

    An investigation on the temperature dependence of spectroscopic parameters of trivalent thulium ions is important for the design of high-power, thulium-doped fiber lasers and amplifiers. In this Letter, the thulium absorption/emission cross sections are determined in the spectral range 700-2200 nm and in the temperature range from196 & DEG,C to 300 & DEG,C. The spectra are obtained from the absorption and emission measurements of a thulium-doped fiber and from measured thulium concentration profiles. Attempts were made to estimate the temperature dependence of the spectra where the measurements are not accessible. Firstly, the spectra are fitted to a multi-Gaussian model with temperature dependent parameters. Secondly, a physically motivated model of the cross section spectra is proposed and analyzed.
    Trvalý link: https://hdl.handle.net/11104/0345201

     
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