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Proceedings Paper

Low PMD transmission fibers and cables
Author(s): T. Geisler
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Paper Abstract

Polarization mode dispersion may be the optical impediment that prevents future system upgrades to higher transmission speeds or longer reach. In contrast to chromatic dispersion, PMD is a statistical quantity making it extremely difficult and expensive to compensate. Thus fibers with low PMD where no such compensation is needed is therefore of great interest. This paper discusses the levels of PMD that can be tolerated at future transmission speeds and relate these to the current ITU-T recommendations. The focus of this paper is the issues that have to be considered in order to manufacture fibers and cables with sufficiently low PMD levels. This includes process control, fiber spinning, and proper measurement of the PMD. A correct PMD measurement makes it possible to judge whether a specific step in the process introduces or changes PMD. We show that the proper process control and PMD measurements have facilitated production and installation of large volume of cables with PMD low enough to support future upgrades.

Paper Details

Date Published: 21 November 2007
PDF: 12 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67811U (21 November 2007); doi: 10.1117/12.745256
Show Author Affiliations
T. Geisler, OFS Fitel Denmark ApS (Denmark)


Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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