IEEE Access (Jan 2023)

Constellation Shaped 3D HQAM-DPSK Modulation for Single Wavelength Multi-Dimensional Optical Transmission

  • Jinwoo Park,
  • Inho Ha,
  • Joungmoon Lee,
  • Sang-Kook Han

DOI
https://doi.org/10.1109/ACCESS.2023.3251382
Journal volume & issue
Vol. 11
pp. 22526 – 22530

Abstract

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A novel concept for single wavelength high spectral-efficient multi-dimensional optical transmission with geometric and probabilistic constellation shaping and bit mapping technique is presented in this study. We propose a simultaneous Hexagonal RF-Quadrature Amplitude Modulation – Differential Phase Shift Keying(HQAM-DPSK) optical modulation for spectral efficient optical transmission. In order to mitigate signal distortion by inter-dimensional interference between intensity and phase, constellation shaping technique is applied to multi-dimensional optical transmission scheme. The validity of the proposed scheme is demonstrated by optical fiber transmission simulation.

Keywords