Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel
Gabriele Liga, Bin Chen, Alex Alvarado
TL;DR
This paper introduces a model-aided approach to optimize dual-polarization 4D constellations in nonlinear fiber channels, achieving significant rate and reach improvements over traditional formats.
Contribution
It presents a novel geometry optimization method for 4D constellations using a nonlinear interference model, enhancing performance in optical fiber communications.
Findings
0.27 bit/4D rate gain achieved
13% increase in reach capacity
Effective optimization of constellation geometry
Abstract
The geometry of dual-polarization four-dimensional constellations is optimized in the optical fiber channel using a recent nonlinear interference model. A 0.27 bit/4D rate gain and 13% reach increase are attained compared to polarization-multiplexed formats.
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Taxonomy
TopicsOptical Network Technologies · Photonic and Optical Devices · Advanced Fiber Optic Sensors