Ahead of Print article · Journal article
Ultrahigh-Spectral-Efficiency WDM/SDM Transmission Using PDM-1024-QAM Probabilistic Shaping With Adaptive Rate
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark1
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark2
Department of Photonics Engineering, Technical University of Denmark3
Fujikura Ltd.4
NTT Corporation5
Coding and Visual Communication, Department of Photonics Engineering, Technical University of Denmark6
Technical University of Denmark7
We demonstrate wavelength-division-multiplexed (WDM) and space-division-multiplexed (SDM) transmission of probabilistically shaped polarization-division-multiplexed (PDM) 1024-state quadrature amplitude modulation (QAM) channels over a 9.7-km single-mode 30-core fiber, achieving aggregated spectral efficiency of 297.82 bit/s/Hz on a 12.5-GHz grid and 7.01-Tbit/s spatial-super-channel on a 25-GHz grid without multiple-input multiple-output (MIMO) processing.
Actual soft-decision forward error correction (SD-FEC) decoding was employed to obtain error-free performance, and adaptive rates and spectral efficiencies for individualWDM/SDM channels have been applied according to their channel conditions, by adjusting the SD-FEC overhead without changing the modulation format.
Probabilistically shaped PDM-1024-QAM has been used to further increase the aggregated achievable rate due to the added performance improvement through shaping gain.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2018 |
| Pages: | 1304-1308 |
| ISSN: | 07338724 and 15582213 |
| Types: | Ahead of Print article and Journal article |
| DOI: | 10.1109/JLT.2017.2787340 |
| ORCIDs: | Hu, Hao , Yankov, Metodi Plamenov , Da Ros, Francesco , 0000-0002-9537-304X , 0000-0003-0673-2707 , Morioka, Toshio , Galili, Michael , Forchhammer, Søren and Oxenløwe, Leif Katsuo |
1024-state quadrature amplitude modulation (1024-QAM) Adaptive rate Forward error correction (FEC) Optical fiber communication Probabilistic Shaping Space division multiplexing (SDM) Spectral efficiency Wavelength division multiplexing (WDM)
Decoding Optical fiber amplifiers Optical fiber polarization Phase shift keying Probabilistic logic Quadrature amplitude modulation Wavelength division multiplexing adaptive rate forward error correction (FEC) optical fiber communication probabilistic shaping space division multiplexing (SDM) spectral efficiency wavelength division multiplexing (WDM)
