Modeling the time-variant channel of a PMD-affected WDM transmission system in respect to the temperature activity of dispersion compensating modules

Daniel Goelz; Ralph Leppla; Suzanne Salaun; Roman Glatty; Stefan Boehm; Peter Meissner

doi:10.1117/12.691256

2 October 2006 Modeling the time-variant channel of a PMD-affected WDM transmission system in respect to the temperature activity of dispersion compensating modules

Daniel Goelz, Ralph Leppla, Suzanne Salaun, Roman Glatty, Stefan Boehm, Peter Meissner

Author Affiliations +

Proceedings Volume 6388, Optical Transmission Systems and Equipment for Networking V; 63880K (2006) https://doi.org/10.1117/12.691256
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

The most common model used for PMD simulations visualizes the fiber as a concatenation of a large number of birefringent elements. This system's DGD has the same Maxwellian PDF for each frequency. By measurement of certain links it is shown that the PDF of the DGD is not equal for all of the frequency bands. This behavior could be traced back to the fact that fiber links consist of a certain number of stable buried sections, with nearly no PMD changes over weeks and months. These sections are connected by sections exposed to strong temperature variations, acting as polarization rotators. This new model of a fiber link is known as the hinge model. To characterize these hinges, the temperature dependent behavior of several DCM and patch cords commonly used in WDM systems have been investigated. Measurements showed that DCM are the most active hinges. They produce approximately a full rotation in Stokes space when heated 1°C. This rotation is both reproducible and reversible. An novel model of the analyzed DCM has been developed in Matlab, which is able to reproduce the described measured behavior in simulations. The frequency dependency of the DGD's PDF leads from overall systems outage probability to frequency selective outage probability. That means instead of having a system outage at a certain outage probability, outage probabilities are connected to a number of outage channels.

Citation Download Citation

Daniel Goelz, Ralph Leppla, Suzanne Salaun, Roman Glatty, Stefan Boehm, and Peter Meissner "Modeling the time-variant channel of a PMD-affected WDM transmission system in respect to the temperature activity of dispersion compensating modules", Proc. SPIE 6388, Optical Transmission Systems and Equipment for Networking V, 63880K (2 October 2006); https://doi.org/10.1117/12.691256

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