Distributed Fiber Optic Sensing Based on Optical Frequency Domain Reflectometry and Its Application Progress (Invited)

被引：2

作者：

Wang Yiping ^{[1
,2
,3
]}

Zhong Huajian ^{[1
,2
]}

Shan Rongyi ^{[1
,2
]}

Liang Wenfa ^{[1
,2
]}

Peng Zhenwei ^{[1
,2
]}

Meng Yanjie ^{[1
,2
]}

Liao Changrui ^{[1
,2
]}

Fu Cailing ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Shenzhen Key Lab Photon Devices & Sensing Syst In, State Key Lab Radio Frequency Heterogeneous Integ, Guangdong & Hong Kong Joint Res Ctr Opt Fiber Sen, Shenzhen 518060, Guangdong, Peoples R China

[2] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Ultrafast Laser Micro Nano Mfg, Key Lab Optoelect Devices & Syst,Minist Educ Guan, Shenzhen 518060, Guangdong, Peoples R China

[3] Guangdong Lab Artificial Intelligence & Digital E, Shenzhen 518107, Guangdong, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2024年 / 61卷 / 01期

关键词：

optical frequency domain reflectometry; sweep nonlinearity; coherent fading; 3D shape; large strain; high temperature; SINGLE-MODE FIBER; MULTI-CORE FIBER; HIGH-TEMPERATURE; LONG-RANGE; ACOUSTIC SENSOR; AUXILIARY INTERFEROMETER; STRAIN-MEASUREMENT; GRATING SENSOR; OFDR; LASER;

D O I：

10.3788/LOP232406

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：

The optical frequency domain reflectometer (OFDR) boasts distributed sensing capabilities, including high spatial resolution, precision, and sensitivity. This technology exhibits significant promise across diverse applications, ranging from oil and gas resource exploration to structural health monitoring and minimally invasive medical intervention surgery. Despite its merits, challenges such as sweep frequency nonlinear noise, coherent fading noise, and weak Rayleigh backscatter signals in optical fibers can impact the performance of optical frequency domain reflectors. This article elucidates the fundamental principles of optical frequency domain reflectors and expounds on two sensing demodulation methods: wavelength and phase. Additionally, it delves into various strategies for mitigating sweep frequency nonlinear noise and coherent fading noise. The discussion extends to the progress in sensing applications of optical frequency domain reflectors, encompassing three-dimensional shape, large strain, high temperature, refractive index, and other pertinent aspects.

引用

页数：18

共 121 条

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