Abstract
Manufacture of optical fibers is subject to inherent uncertainty in
various process and material parameters, which, in turn, leads to variability
in product quality and impacts the reliability of the optical fibers in use.
Analysis of the interactive effects of parameter uncertainty on the optical
fiber quality is imperative in a robust-design endeavor. To this end, a methodology
for simulation of optical fiber drawing process under uncertainty is presented
by considering a two-dimensional (2-D) numerical model of the flow, heat and
mass transfer phenomena involved in the fiber drawing process. A sampling-based
stochastic model is developed, and parametric analysis is presented to elucidate
the effects of uncertainty in several process and material parameters on the
variability of index of refraction, residual stress, maximum tension, and
defect concentration. Design maps are derived from the analysis which provide
for selection of furnace wall temperature as a function of the input parameter
uncertainty and target maximum acceptable variability in the index of refraction,
residual stress, maximum tension, and defects.
© 2008 IEEE
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