Počet záznamů: 1
Preparation and properties of Tm-doped SiO2-ZrO2 phase separated optical fibers for use in fiber lasers
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SYSNO ASEP 0538169 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Preparation and properties of Tm-doped SiO2-ZrO2 phase separated optical fibers for use in fiber lasers Tvůrce(i) Vařák, Petr (URE-Y)
Mrázek, Jan (URE-Y) RID, ORCID
Blanc, W. (FR)
Aubrecht, Jan (URE-Y) RID
Kamrádek, Michal (URE-Y)
Podrazký, Ondřej (URE-Y) RIDCelkový počet autorů 6 Zdroj.dok. Optical Materials Express. - : Optical Society of America - ISSN 2159-3930
Roč. 10, č. 6 (2020), s. 1383-1391Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Fiber lasers ; Optical properties ; Optical fiber fabrication Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) CEP GA19-03141S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora URE-Y - RVO:67985882 UT WOS 000537944800005 EID SCOPUS 85086591625 DOI 10.1364/OME.394068 Anotace Zirconium oxide (ZrO2) is a perspective co-dopant of rare-earth ions in silica fibers for use in fiber lasers. ZrO2 nanoparticles increase the solubility of rare-earth ions and enhance their luminescence properties. In this paper, we report on the fabrication of Zr-Tm codoped silica fibers using the MCVD method combined with modified solution-doping technique. Several fibers with different dopant concentrations were prepared and their optical properties were studied. It was found that increasing Zr concentration leads to the creation of larger ZrO2 nanoparticles which causes unwanted attenuation. Optimal Zr concentration was found to be 1 at. %. The fiber with optimal Zr concentration and Tm concentration of 260 ppm exhibited 1.8 mu m fluorescence lifetime of 420 +/- 10 mu s. For the first time in literature, we have demonstrated laser operation in a Zr/Tm-codoped silica fiber. The threshold for laser operation was determined to be 233 mW and the slope efficiency of 72.7% was achieved. MCVD combined with modified solution doping proved to be a feasible method of preparation of Tm-doped SiO2-ZrO2 optical fibers for use in fiber lasers Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2021 Elektronická adresa https://doi.org/10.1364/OME.394068
Počet záznamů: 1