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Proceedings Paper

Mechanical Reliability Of Optical Fibers Through Fatigue Testing
Author(s): Bolesh J. Skutnik; Ta-sheng Wei
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Paper Abstract

Mechanical reliability is a very important factor in determining the practicality of employing optical fiber systems in specific applications. High strength optical fibers are readily achievable, but silica fiber with a polymer coating will lose its strength over time when subjected to moist or wet environments. Fatigue testing has become the primary way to estimate mechanical reliability and predict lifetimes. There are several methods to measure fatigue and the disparities between them may affect the safety factor of systems designed on the basis of their respective results. To measure these differences, our laboratories have tested fiber fatigue by the most prevalent methods. Four different approaches were employed to determine the fatigue character of the fiber. Static fatigue was measured by mandrel wrappping 1.1 meter lengths, by two-point bending, and by direct loading 0.5 meter lengths. Dynamic fatigue on 1.0 meter lengths was measured using seven strain rates. These data, analyses and the fatigue parameters determined by each technique, are reported and the results compared. Implications of the test and analysis methods on lifetime predictions and other reliability issues are also discussed.

Paper Details

Date Published: 1 January 1987
PDF: 8 pages
Proc. SPIE 0842, Fiber Optics Reliability: Benign and Adverse Environments, (1 January 1987); doi: 10.1117/12.968173
Show Author Affiliations
Bolesh J. Skutnik, Ensign-Bickford Optics Company (United States)
Ta-sheng Wei, GTE Laboratories Incorporated (United States)

Published in SPIE Proceedings Vol. 0842:
Fiber Optics Reliability: Benign and Adverse Environments
Dilip K. Paul, Editor(s)

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