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Microfiber-Based Bragg Gratings for Sensing Applications: A Review

Authors
Journal
Sensors
1424-8220
Publisher
MDPI AG
Publication Date
Volume
12
Issue
12
Identifiers
DOI: 10.3390/s120708861
Keywords
  • Review

Abstract

Microfiber-based Bragg gratings (MFBGs) are an emerging concept in ultra-small optical fiber sensors. They have attracted great attention among researchers in the fiber sensing area because of their large evanescent field and compactness. In this review, the basic techniques for the fabrication of MFBGs are introduced first. Then, the sensing properties and applications of MFBGs are discussed, including measurement of refractive index (RI), temperature, and strain/force. Finally a summary of selected MFBG sensing elements from previous literature are tabulated.

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