Abstract
A method for modeling the fabrication of capillary tubes
is developed that includes the effects of preform rotation, and is used to
reduce or remove polarization mode dispersion and fiber birefringence. The
model is solved numerically, making use of extensive experimental investigations
into furnace temperature profiles and silica glass viscosities, without the
use of fitting parameters. Accurate predictions of the geometry of spun capillary
tubes are made and compared directly with experimental results, showing remarkable
agreement and demonstrating that the mathematical modeling of fiber drawing
promises to be an accurate predictive tool for experimenters. Finally, a discussion
of how this model impacts on the rotation of more general microstructured
optical fiber preforms is given.
© 2008 IEEE
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