Next Article in Journal
Organ-Tumor-on-a-Chip for Chemosensitivity Assay: A Critical Review
Next Article in Special Issue
A Modified Lattice Configuration Design for Compact Wideband Bulk Acoustic Wave Filter Applications
Previous Article in Journal
Flexible Holographic Fabrication of 3D Photonic Crystal Templates with Polarization Control through a 3D Printed Reflective Optical Element
Article Menu

Export Article

Open AccessArticle
Micromachines 2016, 7(8), 129;

Application of Robust, Packaged Long-Period Fiber Grating for Strain Measurement

Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Author to whom correspondence should be addressed.
Academic Editors: Teen-Hang Meen, Shoou-Jinn Chang, Stephen D. Prior and Artde Donald KinTak Lam
Received: 1 June 2016 / Revised: 11 July 2016 / Accepted: 19 July 2016 / Published: 26 July 2016
View Full-Text   |   Download PDF [5963 KB, uploaded 26 July 2016]   |  


This paper proposes an optical fiber strain sensor based on packaged long-period fiber gratings (PLPFG) which is fabricated by the micro-electromechanical systems (MEMS) process and packaged with poly-dimethylsiloxane (PDMS) polymer materials. The optical fiber sensor packaged with PDMS improves robustness effectively. The proposed PLPFG sensors have periods of 610, 650, 660 μm and fiber diameter of 48, 60, 72 μm, respectively. The resonance dip of the PLPFG grows when a strain loaded onto the sensor. The results show that the largest strain sensitivity of the PLPFG strain sensor was −0.0652 dB/με from 0–1200 με and the linearity (R2) was 0.9812. Accordingly, the proposed PLPFG sensor has good potential for high-sensitivity strain sensing applications. View Full-Text
Keywords: optical fiber sensor; long-period fiber grating; strain sensor optical fiber sensor; long-period fiber grating; strain sensor

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ma, K.-P.; Wu, C.-W.; Hsieh, T.-S.; Hsieh, M.-Y.; Chiang, C.-C. Application of Robust, Packaged Long-Period Fiber Grating for Strain Measurement. Micromachines 2016, 7, 129.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top