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arXiv · 1507.00953

Polarization Drift Channel Model for Coherent Fibre-Optic Systems

Cristian B. Czegledi·Magnus Karlsson·Erik Agrell·Pontus Johannisson
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Abstract

A theoretical framework is introduced to model the dynamical changes of the state of polarization during transmission in coherent fibre-optic systems. The model generalizes the one-dimensional phase noise random walk to higher dimensions, accounting for random polarization drifts, emulating a random walk on the Poincar\'e sphere, which has been successfully verified using experimental data. The model is described in the Jones, Stokes and real four-dimensional formalisms, and the mapping between them is derived. Such a model will be increasingly important in simulating and optimizing future systems, where polarization-multiplexed transmission and sophisticated digital signal processing will be natural parts. The proposed polarization drift model is the first of its kind as prior work either models polarization drift as a deterministic process or focuses on polarization-mode dispersion in systems where the state of polarization does not affect the receiver performance. We expect the model to be useful in a wide-range of photonics applications where stochastic polarization fluctuation is an issue.

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Cristian B. Czegledi, Magnus Karlsson, Erik Agrell, Pontus Johannisson. 2015-07-03. Polarization Drift Channel Model for Coherent Fibre-Optic Systems. https://doi.org/10.1038/srep21217

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