Paper Abstract and Keywords |
Presentation |
2020-11-12 13:20
[Invited Talk]
Recent trends of slope-assisted BOCDR Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2020-37 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Brillouin optical correlation-domain reflectometry (BOCDR) is one of the fiber-optic Brillouin-based distributed sensing techniques for strain and temperature with single-end accessibility. Since the first proposal of the basic concept in 2008, the performance of BOCDR has been drastically improved from a variety of aspects including high-speed operation. Here, we focus on one of the high-speed BOCDR configurations referred to as slope-assisted (SA-) BOCDR. In this configuration, instead of observing the whole Brillouin gain spectrum, only the spectral power at a certain frequency on the spectrum is detected, leading to frequency-sweep-free high-speed operation and some unique features. In this paper, we describe the basic principle of SA-BOCDR and its unique feature called beyond-nominal resolution effect. Then we present an example of SA-BOCDR-based structural diagnosis using composite structure comprising carbon fiber reinforced plastics. We also discuss the current issues of SA-BOCDR and present a concluding remark. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Optical fiber sensors / Brillouin scattering / distributed strain measurements / structural health monitoring / carbon fiber reinforced plastics (CFRPs) / / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 230, OFT2020-37, pp. 1-6, Nov. 2020. |
Paper # |
OFT2020-37 |
Date of Issue |
2020-11-05 (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) |
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OFT2020-37 |
Conference Information |
Committee |
OFT ITE-BCT OCS IEE-CMN |
Conference Date |
2020-11-10 - 2020-11-11 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
OFT |
Conference Code |
2020-11-OFT-BCT-OCS-CMN |
Language |
English (Japanese title is available) |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Recent trends of slope-assisted BOCDR |
Sub Title (in English) |
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Keyword(1) |
Optical fiber sensors |
Keyword(2) |
Brillouin scattering |
Keyword(3) |
distributed strain measurements |
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structural health monitoring |
Keyword(5) |
carbon fiber reinforced plastics (CFRPs) |
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1st Author's Name |
Heeyoung Lee |
1st Author's Affiliation |
Shibaura Institute of Technology (SIT) |
2nd Author's Name |
Kentaro Nakamura |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
3rd Author's Name |
Yosuke Mizuno |
3rd Author's Affiliation |
Yokohama National University (YNU) |
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Speaker |
Author-1 |
Date Time |
2020-11-12 13:20:00 |
Presentation Time |
40 minutes |
Registration for |
OFT |
Paper # |
OFT2020-37 |
Volume (vol) |
vol.120 |
Number (no) |
no.230 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2020-11-05 (OFT) |
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