Frequency splicing code-based Brillouin optical time domain collider for fast dynamic measurement

被引：0

作者：

Zhou, Yin ^{[1
]}

Yan, Lianshan ^{[1
]}

He, Haijun ^{[1
]}

Li, Zonglei ^{[2
,3
]}

Qian, Heng ^{[1
]}

Zhang, Xinpu ^{[1
]}

Pan, Wei ^{[1
]}

Luo, Bin ^{[1
]}

机构：

[1] Southwest JiaoTong Univ, Ctr Informat Photon & Commun, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China

[2] Northwestern Polytech Univ, Sch Phys Sci & Technol, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710129, Shaanxi, Peoples R China

[3] Northwestern Polytech Univ, Sch Phys Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Xian 710129, Shaanxi, Peoples R China

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 08期

基金：

中国国家自然科学基金;

关键词：

SLOPE-ASSISTED BOTDA; RAILWAY; SENSORS; RANGE; RATIO; SBS;

D O I：

10.1364/OE.420758

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a frequency splicing code-based Brillouin optical time domain collider (FSC-BOTDC) for fast dynamic sensing. By delicately designing the frequency splicing code (FSC), multiple collision modes with controllable characteristics are realized for probing multiple target areas with a high sampling rate. Moreover, the sensing system is simpler and more robust than the previous BOTDC. In the experiment, the FSC-BOTDC with 10-time enhanced sampling rate is implemented for single and multiple target areas measurements. Results demonstrate that tailorable measurements can be achieved by the tunable FSC. Furthermore, the FSC-BOTDC is executed to measure periodic mechanical vibrations over 7.9-km sensing range with the sampling rate of 625 Hz. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：12478 / 12490

页数：13

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