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Proceedings Paper

Mechanical strength of silica fiber splices after exposure to extreme temperatures
Author(s): Marcus Perry; Pawel Niewczas; Michael Johnston; Kevin Cook; John Canning
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Paper Abstract

By using a combination of type-I and regenerated gratings, the mechanical strength of optical fiber splices after exposure to temperatures over 1300 °C was characterized. Splice strength was found to decrease with temperature with a secondorder polynomial dependence after exposure to environments hotter than 500 °C. Splices exposed to temperatures above 1300 °C were 80% more fragile than non-exposed splices. The lack of optical attenuation and the narrowing distribution of breaking strengths for higher temperatures suggest surface damage mechanisms, such as hydrolysis, play a key role in weakening post-heating and that damage mechanisms dominate over strengthening induced by crack melting.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AD (7 November 2012); doi: 10.1117/12.965872
Show Author Affiliations
Marcus Perry, Univ. of Strathclyde (United Kingdom)
Pawel Niewczas, Univ. of Strathclyde (United Kingdom)
Michael Johnston, EDF Energy Nuclear Generation Ltd. (United Kingdom)
Kevin Cook, Univ. of Sydney (Australia)
John Canning, Univ. of Sydney (Australia)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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