Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems

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Bin Chen, Gabriele Liga, Yi Lei, Wei Ling, Zhengyan Huan, Xuwei Xue, Alex Alvarado

Published: 01 Jan 2022, Last Modified: 22 Sept 2025OFC 2022EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: We review the design of multidimensional modulations by maximizing generalized mutual information and compare the maximum transmission reach of recently introduced 4D formats. A model-based optimization for nonlinear-tolerant 4D modulations is also discussed. © 2021 The Author(s)