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Thulium-doped optical fibers for fiber lasers operating at around 2 mu m

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    0518242 - ÚFE 2020 RIV PL eng J - Článek v odborném periodiku
    Kašík, Ivan - Kamrádek, Michal - Aubrecht, Jan - Peterka, Pavel - Podrazký, Ondřej - Cajzl, Jakub - Mrázek, Jan - Honzátko, Pavel
    Thulium-doped optical fibers for fiber lasers operating at around 2 mu m.
    Polish Academy of Sciences. Bulletin. Technical Sciences. Roč. 67, č. 5 (2019), s. 981-986. ISSN 0239-7528. E-ISSN 2300-1917
    Grant CEP: GA ČR(CZ) GA17-20049S
    Institucionální podpora: RVO:67985882
    Klíčová slova: Fiber laser * Aluminum oxide * Nanoparticle doping * Optical fiber
    Kód oboru RIV: BH - Optika, masery a lasery
    Obor OECD: Optics (including laser optics and quantum optics)
    Impakt faktor: 1.385, rok: 2019
    http://journals.pan.pl/dlibra/publication/130883/edition/114308/content

    The paper deals with spectral and lasing characteristics of thulium-doped optical fibers fabricated by means of two doping techniques, i.e. via a conventional solution-doping method and via a nanoparticle-doping method. The difference in fabrication was the application of a suspension of aluminum oxide nanoparticles of defined size instead of a conventional chloride-containing solution. Samples of thulium-doped silica fibers having nearly identical chemical composition and waveguiding properties were fabricated. The sample fabricated by means of the nanoparticle-doping method exhibited longer lifetime, reflecting other observations and the trend already observed with the fibers doped with erbium and aluminum nanoparticles. The fiber fabricated by means of the nanoparticle-doping method exhibited a lower lasing threshold (by similar to 20%) and higher slope efficiency (by similar to 5% rel.). All these observed differences are not extensive and deserve more in-depth research, they may imply a positive influence of the nanoparticle approach on properties of rare-earth-doped fibers for fiber lasers
    Trvalý link: http://hdl.handle.net/11104/0303401
     
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