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Proceedings Paper

Optical fiber lifetime in harsh conditions
Author(s): Noella Evanno; Marcel Poulain; Alain Gouronnec
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Paper Abstract

Static fatigue measurements have been carried out on silica fibers for telecommunication networks. These fibers were immersed into water at temperatures ranging from 20 degree(s)C to 70 degree(s)C. They were winded around alumina materials, which induced a permanent stress lying between 3.2 and 3.5 GPa. The evolution of failure time with respect to temperature is Arrhenian. We propose a general relation with semi empirical constants, from which the failure time may be calculated as a function of temperature and stress. The n factor and parameters were calculated. The n factor decreases linearly versus temperature while the BSin-2 parameter increases exponentially with respect to temperature. This reflects two different phenomena: the structural relaxation which compensates the external stress and the acceleration of the chemical attack of the water molecules.

Paper Details

Date Published: 29 December 1999
PDF: 7 pages
Proc. SPIE 3848, Optical Fiber Reliability and Testing, (29 December 1999); doi: 10.1117/12.372787
Show Author Affiliations
Noella Evanno, France Telecom CNET-CNS (France)
Marcel Poulain, Univ. de Rennes I (France)
Alain Gouronnec, France Telecom CNET-CNS (France)


Published in SPIE Proceedings Vol. 3848:
Optical Fiber Reliability and Testing
M. John Matthewson, Editor(s)

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