Paper Abstract and Keywords |
Presentation |
2018-10-11 16:00
[Poster Presentation]
Simple and accurate Bragg wavelength demodulation method in multimode plastic FBGs Tianyi Ma, Ryo Ishikawa, Heeyoung Lee (Tokyo Tech), Antreas Theodosiou, Kyriacos Kalli (CUT), Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2018-42 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
For strain sensing applications, we develop a simple and accurate demodulation method for fiber Bragg gratings (FBGs) inscribed in multimode optical fibers. As multimode FBG spectra generally exhibit multiple peaks, simply tracking some particular spectral peaks (i.e., maximum detection) results in measurement failure when strain is large. Here, using an FBG inscribed in a perfluorinated graded-index multimode polymer optical fiber, we experimentally evaluate the new method by comparing its performance with those of other demodulation algorithms, such as maximum and centroid detection methods. Finally, using this method, we demonstrate the accurate measurement of strain of up to 1.0%. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
optical fiber sensors / fiber Bragg gratings / multimode optical fibers / perfluorinated graded-index plastic optical fibers / strain sensing / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 238, OFT2018-42, pp. 133-136, Oct. 2018. |
Paper # |
OFT2018-42 |
Date of Issue |
2018-10-04 (OFT) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
OFT2018-42 |
|