采用非线性补偿和带FEC反馈的DD-LMS的单载波400G无中继WDM传输

2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI:10.1109/IMOC.2017.8121038

C. Hélio, Andre L. N. Souza, Joao Januario, S. Rossi, A. Chiuchiarelli, J. Reis, S. Makovejs, D. Mello

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引用次数: 3

摘要

本文研究了非线性补偿和前向纠错(FEC)反馈增强的动态均衡的非中继光传输性能。采用数字反向传播(DBP)算法进行非线性补偿，采用空间耦合低密度奇偶校验(SC-LDPC)码进行误差校正。该技术通过在75 GHz网格内以16×400 Gb/s单载波信道(66 GBd DP-16QAM)的无重复WDM传输进行了实验评估，传输距离为403 km (64.7 dB跨度损耗)，达到2.58 Pb/s km。结果表明，对于3和6 dbm的平均发射功率，Q2的边际分别高达0.4和0.5 dB，与之前的工作相比，有了明显的改善。

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Single-carrier 400G unrepeatered WDM transmission using nonlinear compensation and DD-LMS with FEC feedback

In this paper, we investigate the performance of unrepeatered optical transmission using nonlinear compensation, and dynamic equalization enhanced by forward error correction (FEC) feedback. The digital back-propagation (DBP) algorithm is used for nonlinear compensation, while error correction is provided by spatially-coupled low-density parity-check (SC-LDPC) codes. The technique is experimentally evaluated by the unrepeatered WDM transmission of 16×400 Gb/s single-carrier channels (66 GBd DP-16QAM) within a 75 GHz grid over 403 km (64.7 dB span loss), achieving 2.58 Pb/s km. The results indicated Q2 margins to the FEC limit of up to 0.4 and 0.5 dB for 3 and 6-dBm average launch powers, respectively, exhibiting a tangible improvement compared with previous works.

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来源期刊

2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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