Ultrasensitive Optical Fiber Sensors Working at Dispersion Turning Point: Review

被引：8

作者：

Xu, Shengyao ^{[1
]}

Kang, Peng ^{[1
]}

Hu, Zhijie ^{[1
]}

Chang, Weijie ^{[1
]}

Huang, Feng ^{[1
]}

机构：

[1] Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China

来源：

SENSORS | 2023年 / 23卷 / 03期

基金：

中国国家自然科学基金;

关键词：

optical fiber sensor; dispersion turning point; sensitivity enhancement; fiber grating; fiber coupler; interferometer; MODAL INTERFEROMETERS; HIGH-SENSITIVITY; INVERSE DESIGN; STRAIN; TEMPERATURE; MICROFIBERS; TECHNOLOGY; NANOFIBER; GRATINGS; OPTRODE;

D O I：

10.3390/s23031725

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Optical fiber sensors working at the dispersion turning point (DTP) have served as promising candidates for various sensing applications due to their ultrahigh sensitivity. In this review, recently developed ultrasensitive fiber sensors at the DTP, including fiber couplers, fiber gratings, and interferometers, are comprehensively analyzed. These three schemes are outlined in terms of operation principles, device structures, and sensing applications. We focus on sensitivity enhancement and optical transducers, we evaluate each sensing scheme based on the DTP principle, and we discuss relevant challenges, aiming to provide some clues for future research.

引用

页数：16

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