32 Gbps DAC Free Block Wise QPSK 1200 km SSMF Single PD Direct Detection Transmission Based on Delta Sigma Modulation for Virtual Carrier Generation

Zhuo Chen,Ziqiang Wu,Jiaqi Huang,Shenmao Zhang,Xueyuan Ao,Zhongzhong Wang,Junxiang Ke,Lilin Yi,Qi Yang

Asia Communications and Photonics Conference（2019）

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摘要

We experimentally demonstrated a 32Gb/s block-wise QPSK signal transmission over 1200-km SSMF using a single PD. Both QPSK and carrier are generated using high speed digital IO ports based on delta-sigma modulation without any DACs.

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关键词

delta-sigma modulation,virtual carrier generation,block-wise QPSK signal transmission,DAC-free block-wise QPSK,SSMF single-PD direct detection transmission,high speed digital IO ports,distance 1200 km

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