Trans-Atlantic Field Trial Using High Spectral Efficiency Probabilistically Shaped 64-QAM and Single-Carrier Real-Time 250-Gb/s 16-QAM

Junho Cho,Xi Chen,S. Chandrasekhar,G. Raybon,Ronen Dar,Laurent Schmalen,Ells C. Burrows,Andrew Adamiecki,Steve Corteselli,Yan Pan, Diego Correa, Brad McKay,Szilard Zsigmond,Peter J. Winzer,Steve Grubb

Journal of Lightwave Technology（2018）

引用 72|浏览51

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摘要

We report the transmission of probabilistically shaped (PS) 64-ary quadrature amplitude modulation (QAM) at 7.46 b/s/Hz over a 5523-km in-service trans-Atlantic fiber-optic cable that consists of 65-89-km spans of Erbium-doped fiber amplifier only amplified fiber. Using a looped-back system configuration, we achieve 5.68 b/s/Hz over a trans-Pacific-equivalent distance of 11 046 km. Net spectral ef...

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关键词

Wavelength division multiplexing,Bandwidth,Loading,Underwater vehicles,Optical transmitters,Quadrature amplitude modulation,Underwater cables

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