Eight-dimensional Modulation Format Based on Polarization Multiplexed 16-QAM Constellations

We propose an 8-dimensional modulation format based on polarization multiplexed squared 16-QAM constellations. We compare 8D-16QAM, 128-SP-QAM and PM-16QAM using numerical simulations in WDM transmission scenarios at the same baud rates and net bit rates.

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