Vibration Detection and Localization Using Modified Digital Coherent Telecom Transponders

被引：36

作者：

Ip, Ezra ^{[1
]}

Huang, Yue-Kai ^{[2
]}

Wellbrock, Glenn ^{[3
]}

Xia, Tiejun ^{[4
]}

Huang, Ming-Fang ^{[5
]}

Wang, Ting ^{[6
]}

Aono, Yoshiaki ^{[7
]}

机构：

[1] NEC Labs Amer, Opt Networks Div, Princeton, NJ 08540 USA

[2] NEC Labs Amer, Opt Commun, Princeton, NJ 08540 USA

[3] Verizon, Network Technol, Richardson, TX 75082 USA

[4] Verizon, Core Network Technol, Richardson, TX 75082 USA

[5] NEC Labs Amer, Broadband Opt Networks, Princeton, NJ 08540 USA

[6] NEC Labs Amer, Opt Networking, Princeton, NJ 08540 USA

[7] NEC Corp Ltd, Opt Networking, Minato Ku, Tokyo 1088001, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2022年 / 40卷 / 05期

关键词：

Vibrations; Optical fiber cables; Optical fibers; Optical receivers; Optical fiber sensors; Optical interferometry; Transponders; Optical fiber sensing; distributed sensing; acoustic sensing; optical fiber communations; optical fiber network; interferometry; coherent detection; optical transponders; quadrature amplitude modulation; phase noise;

D O I：

10.1109/JLT.2021.3137768

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrate a vibration detection and localization scheme based on bidirectional transmission of telecom signals with digital coherent detection at the receivers. Optical phase is extracted from the digital signal processing blocks of the coherent receiver, from which the vibration component is extracted by bandpass filtering, and the position along the cable closest to the vibration's epicenter is recovered by correlation. We demonstrate our scheme first using offline experiment with 200-Gb/s DP-16QAM, and we report field trial results over installed fiber to detect real-world vibration events.

引用

页码：1472 / 1482

页数：11

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