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Proceedings Paper

Erbium and ytterbium co-doped transparent oxyfluoride glass-ceramics optical fibers
Author(s): Elwira Czerska; Krzysztof Wiśniewski; Elżbieta Augustyn; Czesław Koepke; Radosław Lisiecki; Mirosława Kępińska; Michał Żelechower
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Paper Abstract

According to the earlier author’s papers, the erbium/ytterbium co-doped oxyfluoride glass-ceramics fibers should demonstrate better 1550 nm emission under 488/515/980 nm excitation (the erbium Er3+ ion transition 4I13/24I15/2) than corresponding glass fibers (the batch composition 48SiO211Al2O3-7Na2CO3-10CaO-10PbO-12PbF2- 1.5/0.6YbF3-0.5/0.2ErF3). Glass fibers provided as a core of standard multimode waveguide (the diameter of 62 μm) have been drawn with the mini-tower to the diameter between 50 μm and 80 μm, then annealed in the two-step regime (580°C/1h – nucleation of nano-crystals; 760oC/15/30 min – nano-crystals growth). This kind of heat treatment ensures the transparent glass-ceramics fibers with the microstructure of homogeneously distributed nano-crystals (lead, erbium and ytterbium enriched cubic fluorite-like crystals and hexagonal PbF2 crystals) embedded in a glassy host. Their transmission covers the range of 80-90% and seems to be sufficient with respect to their provided limited length (~2m). The luminescence intensity for glass-ceramics fibers at 1530 nm is higher than that of respective glass fibers and the lifetimes of the erbium ion excited state 4I13/2 are of the same order (~5 ms). In that context the glass-ceramics fibers discussed above seem to be promising candidates for cores of fiber lasers at the 1550 nm band.

Paper Details

Date Published: 22 August 2017
PDF: 6 pages
Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 104530F (22 August 2017); doi: 10.1117/12.2271623
Show Author Affiliations
Elwira Czerska, Silesian Univ. of Technology (Poland)
Krzysztof Wiśniewski, Nicolaus Copernicus Univ. (Poland)
Elżbieta Augustyn, Silesian Univ. of Technology (Poland)
Czesław Koepke, Nicolaus Copernicus Univ. (Poland)
Radosław Lisiecki, Institute for Low Temperature and Structure Research (Poland)
Mirosława Kępińska, Silesian Univ. of Technology (Poland)
Michał Żelechower, Silesian Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10453:
Third International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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