Mechanical Reliability Of Optical Fibers Through Fatigue Testing

Bolesh J. Skutnik; Ta-sheng Wei

doi:10.1117/12.968173

1 January 1987 Mechanical Reliability Of Optical Fibers Through Fatigue Testing

Bolesh J. Skutnik, Ta-sheng Wei

Proceedings Volume 0842, Fiber Optics Reliability: Benign and Adverse Environments; (1987) https://doi.org/10.1117/12.968173
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

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.

Citation Download Citation

Bolesh J. Skutnik and Ta-sheng Wei "Mechanical Reliability Of Optical Fibers Through Fatigue Testing", Proc. SPIE 0842, Fiber Optics Reliability: Benign and Adverse Environments, (1 January 1987); https://doi.org/10.1117/12.968173

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