Three Benefits Brought by Perturbation Back-Propagation Algorithm in 224Gb/s DP-16QAM Transmission

Shoichiro ODA  Takahito TANIMURA  Takeshi HOSHIDA  Yuichi AKIYAMA  Hisao NAKASHIMA  Kyosuke SONE  Zhenning TAO  Jens C. RASMUSSEN  

IEICE TRANSACTIONS on Communications   Vol.E97-B   No.7   pp.1342-1349
Publication Date: 2014/07/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E97.B.1342
Type of Manuscript: Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
nonlinearity compensation algorithm,  digital signal processing,  forward error correction,  cycle slip,  

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Nonlinearity compensation algorithm and soft-decision forward error correction (FEC) are considered as key technologies for future high-capacity and long-haul optical transmission system. In this report, we experimentally demonstrate the following three benefits brought by low complexity perturbation back-propagation nonlinear compensation algorithm in 224Gb/s DP-16QAM transmission over large-Aeff pure silica core fiber; (1) improvement of pre-FEC bit error ratio, (2) reshaping noise distribution to more Gaussian, and (3) reduction of cycle slip probability.