TIA/EIA TSB-107:1999

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Guideline for the Statistical Specification of Polarization Mode Dispersion on Optical Fiber Cables

Published By	Publication Date	Number of Pages
TIA	1999	31

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Description

This document is limited to the statistics of the PMD
distribution of cabled fibers. When the relationship between the
cabled fiber distribution and uncabled fiber distribution is known
and stable, the uncabled fiber data may be used to augment the
characterization of the cabled fiber PMD distribution. Methods of
doing this are beyond the scope of this document.

This document addresses first-order PMD from the perspective of
the polarized view [2], in which the two principal states of
polarization at the output are orthogonal and distinct. The
relative time delay between the two modes at a given wavelength is
the differential group delay (DGD). The average of DGD values
across wavelengths yields the PMD value.

This document assumes that the cabled fiber is highly mode
coupled. As a result, the distribution of the differential group
delay values for a given cabled fiber is assumed to be random
across time and wavelength. The random values follow a Maxwell
distribution [2].

The statistical limits are given in terms of concatenated links
composed of several randomly selected individual cable sections to
give them meaning in terms of functionality. The requirements,
however, are only applicable to the distribution of PMD
coefficients from individual cable sections that are produced by
the cabler.

Additional information