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Review | Open Access

Fiber-Optic Microstructure Sensors: A Review

Zengling RAN1,†( ), Xiu HE1,†, Yunjiang RAO1( ), Dong SUN1, Xiaojuan QIN1, Debiao ZENG2, Wangwei CHU2, Xiankun LI2, Yabin WEI2
Fiber Optics Research Center (FORC), Key Laboratory of Optical Fiber Sensing & Communications, University of Electronic Science and Technology of China, Chengdu 611731, China
Chengdu Aircraft Industrial Group Co., Ltd., Chengdu 610092, China

†These authors contributed equally to this work

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Abstract

This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot interferometer (FPI) sensors, Mach-Zehnder interferometer (MZI) sensors, Michelson interferometer (MI) sensors, and Sagnac interferometer (SI) sensors. Each FOM sensor has been introduced in the terms of structure types, fabrication methods, and their sensing applications. In addition, the sensing characteristics of different structures under the same type of FOM sensor are compared, and the sensing characteristics of the all FOM sensors, including advantages, disadvantages, and main sensing parameters, are summarized. We also discuss the future development of FOM sensors.

Keywords

Fiber-optic sensorsFabry-Perotfiber Bragg gratinglong period gratingMach-Zehnder interferometerMichelson interferometerSagnac interferometer

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Photonic Sensors
Volume 11 Issue 2,
June 2021
Pages 227-261
DOI: 10.1007/s13320-021-0632-7

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Cite this article:
RAN Z, HE X, RAO Y, et al. Fiber-Optic Microstructure Sensors: A Review. Photonic Sensors, 2021, 11(2): 227-261. https://doi.org/10.1007/s13320-021-0632-7

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Received: 15 March 2021
Revised: 25 March 2021
Published: 24 April 2021
© The Author(s) 2021.

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.