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Updated: May 25, 2026

Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
Published on: September 4, 2017
Effects of spin process on birefringence strength of single-mode fibers
Luca Palmieri1, Tommy Geisler, Andrea Galtarossa
1Department of Information Engineering, University of Padova, Via G. Gradenigo 6/B, 35131 Padova, Italy. luca.palmieri@dei.unipd.it
Abstract:
Spin process is the most effective and diffused way to reduce polarization mode dispersion in single-mode optical fibers. All theoretical models adopted so far to describe spun fibers assume that the only effect of spin is to rotate fiber birefringence, without affecting its strength. Yet, experimental analyses of this hypothesis are controversial. In this paper, we report on an extensive experimental characterization of birefringence in spun and unspun fibers. Results indicate that the spinning process has no instantaneous effect on birefringence strength, regardless of the kind of fiber; nevertheless, there might be a small average effect on G.652 fibers.
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