Polarization Drift Channel Model for Coherent Fibre-Optic Systems
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.
Cite
@article{arxiv.1507.00953,
title = {Polarization Drift Channel Model for Coherent Fibre-Optic Systems},
author = {Cristian B. Czegledi and Magnus Karlsson and Erik Agrell and Pontus Johannisson},
journal= {arXiv preprint arXiv:1507.00953},
year = {2024}
}
Comments
15 pages, 4 figures