Ultrahigh-Spectral-Efficiency WDM/SDM Transmission Using PDM-1024-QAM Probabilistic Shaping With Adaptive Rate

Research output: Research - peer-reviewJournal article – Annual report year: 2018


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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.
Original languageEnglish
JournalJournal of Lightwave Technology
Issue number6
Pages (from-to)1304-1308
Number of pages5
StatePublished - 2018
CitationsWeb of Science® Times Cited: 0

    Research areas

  • 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)
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ID: 145212018