Surface analysis and treatment of extruded fluoride phosphate glass preforms for optical fiber fabrication
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Date
2016
Authors
Kalnins, C.
Spooner, N.
Monro, T.
Ebendorff-Heidepriem, H.
Editors
Bailey, E.
Advisors
Journal Title
Journal ISSN
Volume Title
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Journal article
Citation
Journal of The American Ceramic Society, 2016; 99(6):1874-1877
Statement of Responsibility
Christopher A. G. Kalnins, Nigel A. Spooner, Tanya M. Monro, and Heike Ebendorff-Heidepriem
Conference Name
Abstract
Fabrication of fluoride phosphate glass optical fibers using the extrusion method for preform fabrication has been studied using the commercial Schott N-FK51A glass. The extrusion step was found to create a surface layer of differing composition from the bulk glass material, leading to defects drawn down onto the optical fiber surface during fiber fabrication, resulting in high loss and fragile fibers. Similar phenomena have also been observed in other fluoride-based glasses. Removal of this surface layer from preforms prior to fiber drawing was shown to improve optical fiber loss from >5 dB/m to 0.5–1.0 dB/m. The removal of this surface layer is therefore necessary to produce low-loss fluoride phosphate optical fibers.
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First published: 20 April 2016
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© 2016 The American Ceramic Society