Experimental Demonstration of Geometrically-Shaped Constellations Tailored to the Nonlinear Fibre Channel

Abstract

A geometrically-shaped 256-QAM constellation, tailored to the nonlinear optical fibre channel, is experimentally demonstrated. The proposed constellation outperforms both uniform and AWGN-tailored 256-QAM, as it is designed to optimise the trade-off between shaping gain, nonlinearity and transceiver impairments.

References in corpus (2)

• Experimental Comparison of Probabilistic Shaping Methods for Unrepeated Fiber Transmission
• A Simple Nonlinearity-Tailored Probabilistic Shaping Distribution for Square QAM

Cited by in corpus (7)

• Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information
• High-Cardinality Geometrical Constellation Shaping for the Nonlinear Fibre Channel
• Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems
• Geometric Shaping of 2-Dimensional Constellations in the Presence of Laser Phase Noise
• Introducing 4D Geometric Shell Shaping for Mitigating Nonlinear Interference Noise
• On Shaping Gain of Multidimensional Constellation in Linear and Nonlinear Optical Fiber Channel
• Low-Complexity Geometrical Shaping for 4D Modulation Formats via Amplitude Coding