Awakening Intrinsic Distributed Acoustic Sensing in Digital Subcarrier Multiplexing Coherent Transmission Systems

Zihe Hu,Can Zhao,Mingming Zhang,Yuqi Li,Weihao Li,Junda Chen,Yuxuan Xiong,Luming Zhao,Ming Tang

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

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摘要

By awakening the sensing capability of fractional Fourier transform (FrFT) synchronization pilot in digital subcarrier multiplexing (DSCM) coherent transmission systems, we realize 100-Gb/s 16QAM transmission with a distributed acoustic sensing (DAS) sensitivity of 70 $\mathrm{p}\varepsilon/\sqrt{\text{Hz}}$ at a spatial resolution of 5 m.

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关键词

fractional Fourier transform,distributed acoustic sensing,digital subcarrier multiplexing

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