Please use this identifier to cite or link to this item:
Title: Curvature and temperature sensor based on anti-resonant effect combined with multimode interference
Authors: Wang, Shun
Niu, Panting
Liu, Shuhui
Wu, Shun
Jin, Rui-Bo
Lu, Peixiang
Yang, Yaowen
Keywords: Science::Physics
Issue Date: 2021
Source: Wang, S., Niu, P., Liu, S., Wu, S., Jin, R., Lu, P. & Yang, Y. (2021). Curvature and temperature sensor based on anti-resonant effect combined with multimode interference. IEEE Photonics Technology Letters, 33(3), 127-130.
Journal: IEEE Photonics Technology Letters
Abstract: An inline fiber sensor for simultaneous measurement of curvature and temperature based on anti-resonant (AR) effect combined with multimode interference (MMI) is proposed and experimentally demonstrated. The sensing structure is simply formed by embedding a section of multimode fiber (MMF) and glass capillary between single-mode fibers (SMF). Thence the multimode interference (MMI) pattern with dips and the AR effect spectrum with the loss valleys at the resonance wavelengths can be observed on the optical spectrum analyzer (OSA). A curvature sensitivity of -9.25 dB/m-1 with almost unchanged wavelength can be achieved by intensity demodulation at an AR valley. And a temperature sensitivity of 30 pm/°C with a tiny intensity sensitivity -0.079 dB/°C is obtained by wavelength demodulation at a MMI dip. Different demodulation mechanisms enable our sensors to discriminate curvature and temperature. Moreover, the advantages such as repeatability of fabrication, robust structure and cost-effectiveness, further benefit its practical sensing applications.
ISSN: 1041-1135
DOI: 10.1109/LPT.2020.3048988
Schools: School of Civil and Environmental Engineering 
Rights: © 2021 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

Citations 20

Updated on Sep 22, 2023

Web of ScienceTM
Citations 20

Updated on Sep 25, 2023

Page view(s)

Updated on Sep 27, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.