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Development of pedestal-free large mode area fibers withTm3+ doped silica nanostructured core

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    SYSNO ASEP0580712
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleDevelopment of pedestal-free large mode area fibers withTm3+ doped silica nanostructured core
    Author(s) Peterka, Pavel (URE-Y) RID, ORCID
    Aubrecht, Jan (URE-Y) RID, ORCID
    Pysz, D. (PL)
    Franczyk, M. (PL)
    Schreiber, Ondřej (URE-Y)
    Kamrádek, Michal (URE-Y) RID
    Kašík, Ivan (URE-Y) RID
    Buczyński, R. (PL)
    Number of authors8
    Source TitleOptics Express. - : Optical Society of America - ISSN 1094-4087
    Roč. 31, č. 26 (2023), s. 43004-43016
    Number of pages13 s.
    Publication formPrint - P
    Languageeng - English
    CountryUS - United States
    KeywordsFibers ; Nano-structured ; Doped silicas ; Fiber lasers
    Subject RIVBH - Optics, Masers, Lasers
    OECD categoryOptics (including laser optics and quantum optics)
    R&D ProjectsGA23-05701S GA ČR - Czech Science Foundation (CSF)
    GF21-45431L GA ČR - Czech Science Foundation (CSF)
    Method of publishingOpen access
    Institutional supportURE-Y - RVO:67985882
    UT WOS001155842300007
    EID SCOPUS85180270097
    DOI https://doi.org/10.1364/OE.503047
    AnnotationWe present the pedestal-free thulium doped silica fiber with a large nanostructured core optimized for fiber lasers. The fiber is composed of over 6 thousand thulium doped silica nanorods with a diameter of 71 nm each which form a nanostructured step-index core. We study the influence of non-continuous distribution in nanoscale active areas on gain, beam quality, and fiber laser performance. The proof-of-concept fiber is effectively single mode for wavelength above 1.8 μm. We demonstrate the performance of the fiber in a laser setup pumped at 792 nm. Single mode laser emission with a slope efficiency of 29% at quasi-continuous output power of 4 W with M2= 1.3 at the emission spectrum 1880-1925 nm is achieved
    WorkplaceInstitute of Radio Engineering and Electronics
    ContactPetr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488
    Year of Publishing2024
    Electronic addresshttps://doi.org/10.1364/OE.503047
Number of the records: 1  

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