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Contribution to Optical Fiber Lifetime Modelling in Very Harsh Installation and Environment Conditions:Influence of the Temperature and pH on Optical Fiber Mechanical Behaviour.

Published online by Cambridge University Press:  10 February 2011

Noëlla Evanno ,
Marcel Poulain  and
Alain Gouronnec
Noëlla Evanno
Affiliation:
France Telecom /CNET/Lannion, France
Marcel Poulain
Affiliation:
Rennes I University, Photonic Materials Laboratory, Rennes, France
Alain Gouronnec
Affiliation:
France Telecom / CNET /Lannion, France
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Abstract

Today, during their use, optical fibers are subject to harsher installation and environmental conditions. So to evaluate optical fiber lifetime with higher precision, it is necessary to study the mechanical behaviour of optical fibers in extreme conditions : high stress and harsh environment.

This paper presents the results of static bending tests in distilled water at temperatures between 20°C and 70°C and in buffer solutions with a pH between 4 and 9.The stresses applied on optical fiber were between 3 and 3.5 GPa.

We observed a dependence of the failure time on temperature. This dependence can be described by the Arrhenius model, where the activation energy is one of the main parameters. The n-value seems also to change regularly with temperature. The results obtained in buffer solutions show that the pH influence on optical fiber strength may depend on coating characteristics.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 531: Symposium DD – Reliabilty of Photonics Materials & Structures , 1998 , 155
Copyright
Copyright © Materials Research Society 1998

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