1-Pb/s CPRI-Equivalent Rate Coherent DA-RoF Fronthaul with 1024-QAM Scalable in Capacity, Reach, and Linewidth Using Residual Carrier-Based Phase Tracking

Yixiao Zhu,Xiansong Fang,Chenbo Zhang,Jingjing Lin,Yicheng Xu,Weiwei Hu,Zhangyuan Chen,Qunbi Zhuge,Fan Zhang,Xiaopeng Xie,Weisheng Hu

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)（2023）

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摘要

We demonstrate 1.0-Pb/s CPRI-equivalent rate fronthaul with 1024-QAM by using digital-analog radio-over-fiber and coherent detection based on modulator bias-induced residual carrier for phase tracking. The reach is extended to 20-km SSMF with 4096-QAM and 80-km with 256-QAM, and laser linewidth can be relaxed to 3MHz.

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关键词

fronthaul,radio-over-fiber,coherent detection,carrier phase recovery,CPRI

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