Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel
arXiv:2110.11670
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.
Submitted to the Optical Fiber Communication Conference (OFC) 2022