Polarization Tracking in the Presence of PDL and Fast Temporal Drift
Journal article, 2022
In this paper, we analyze the effectiveness of polarization tracking algorithms in optical transmission systems suffering from fast state of polarization (SOP) rotations and polarization-dependent loss (PDL). While most of the gradient descent (GD)-based algorithms in the literature may require step size adjustment when the channel condition changes, we propose tracking algorithms that can perform similarly or better without parameter tuning. Numerical simulation results show higher robustness of the proposed algorithms to SOP and PDL drift compared to GD-based algorithms, making them promising candidates to be used in aerial fiber links where the SOP can potentially drift rapidly, and therefore becomes challenging to track.
state of polarization
Optical fiber amplifiers
polarization-dependent loss
Symbols
Optical fiber dispersion
hybrid algorithm
Optical polarization
Optical fiber couplers
Channel estimation
Constant modulus algorithm
least square algorithm
polarization tracking
Signal processing algorithms
Author
Mohammad Farsi
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Christian Häger
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Magnus Karlsson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Erik Agrell
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Journal of Lightwave Technology
0733-8724 (ISSN) 1558-2213 (eISSN)
Vol. 40 19 6408-6416Physics-Based Deep Learning for Optical Data Transmission and Distributed Sensing
Swedish Research Council (VR) (2020-04718), 2021-01-01 -- 2024-12-31.
Communications over bursty optical channels
Swedish Research Council (VR) (2021-03709), 2022-01-01 -- 2025-12-31.
Unlocking the Full-dimensional Fiber Capacity
Knut and Alice Wallenberg Foundation (KAW 2018.0090), 2019-07-01 -- 2024-06-30.
Subject Categories
Telecommunications
Control Engineering
Signal Processing
DOI
10.1109/JLT.2022.3194734