Progress in reliability of silica optical fibres

Irina Severin; M. Poulain; R. El Abdi

doi:10.1117/12.781662

26 April 2008 Progress in reliability of silica optical fibres

Irina Severin, M. Poulain, R. El Abdi

Proceedings Volume 7003, Optical Sensors 2008; 700322 (2008) https://doi.org/10.1117/12.781662
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

Silica optical fibres that were developed for telecommunication networks extend their use for sensors and smart structures. Their reliability and expected lifetime has appeared as a major concern. Series of experiments were implemented in order to assess fibre behaviour in different environmental conditions, including chemical corrosion and mechanical stress. Optical fibres were aged in water under controlled stress overlapping microwave energy for different durations. Fibre samples were wound on different diameter mandrels applying consequently a non-uniform tensile, respectively compression stress in function of the fibre's section. Different experimental combinations were implemented in order to separate aging factor effects. Then, these aged / stretched fibres were dynamic tensile tested at different strain rates and results were statistically treated using Weibull theory. In certain cases and testing conditions, comparison with as received fibres has revealed strength increase with a generally mono-modal defect distribution on the fibre surface. Base on previous and current results, the structural relaxation phenomenon at the silica cladding - polymer coating interface might be evidenced.

Citation Download Citation

Irina Severin, M. Poulain, and R. El Abdi "Progress in reliability of silica optical fibres", Proc. SPIE 7003, Optical Sensors 2008, 700322 (26 April 2008); https://doi.org/10.1117/12.781662

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