Extruded suspended core fibers from lanthanum-aluminum-silicate glass

We report the use of the extrusion technique at highest temperatures to date (975 °C - 1000 °C) for the fabrication of suspended core fibers (SCFs) from glass with molar composition 65 SiO 2 -20 Al 2 O 3 -15 La 2 O 3 (SAL65). Through adjusting die design and fabrication conditions, extruded preforms...

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Bibliographic Details
Published in:Optical materials express 2021-01, Vol.11 (1), p.142
Main Authors: Litzkendorf, Doris, Matthes, Anne, Schwuchow, Anka, Dellith, Jan, Wondraczek, Katrin, Ebendorff-Heidepriem, Heike
Format: Article
Language:English
Subjects:
Aluminum oxide
Extrusion dies
Lanthanum
Lanthanum oxides
Optical fibers
Preforms
Silicon dioxide
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Summary:We report the use of the extrusion technique at highest temperatures to date (975 °C - 1000 °C) for the fabrication of suspended core fibers (SCFs) from glass with molar composition 65 SiO 2 -20 Al 2 O 3 -15 La 2 O 3 (SAL65). Through adjusting die design and fabrication conditions, extruded preforms for fibers with two different core sizes (1.2 µm and 3.1 µm) were successfully produced. Cross-sectional microstructure and material loss of these fibers highlight the potential of the extrusion technique for fabrication of microstructured optical fibers from glasses with high softening temperature and thus high thermal and mechanical stability.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.409422