Paper Abstract and Keywords |
Presentation |
2023-10-12 15:00
[Poster Presentation]
Proposal of differential spectrum scheme in Brillouin optical correlation-domain reflectometry Ryo Inoue, Haruki Sasage, Yusei Shirai, Keita Kikuchi (SIT), Yosuke Mizuno (YNU), Heeyoung Lee (SIT) OFT2023-38 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In Brillouin optical correlation-domain reflectometry (BOCDR), the length of the fiber under test (FUT) (i.e., the measurement range) is significantly limited because only one correlation peak should exist in the FUT. To solve this issue, some special schemes including temporal gating and double modulation have been developed to extend the measurement range while maintaining the spatial resolution, but some additional devices are required, leading to higher cost. In this study, we propose a “differential spectrum scheme” to measure the strain distribution near the distal end of the FUT in a range beyond the theoretical limit, when no strain is known to be applied to the other parts of the FUT. In this scheme, multiple correlation peaks are generated in the FUT, and the effect of the Brillouin scattered light returned from the correlation peaks outside the measurement section is suppressed by signal processing. This scheme is free from additional devices, resulting in improved cost efficiency. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Optical fiber sensing / Brillouin scattering / Distributed measurement / Correlation-domain techniques / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 123, no. 210, OFT2023-38, pp. 89-92, Oct. 2023. |
Paper # |
OFT2023-38 |
Date of Issue |
2023-10-05 (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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OFT2023-38 |
Conference Information |
Committee |
OFT |
Conference Date |
2023-10-12 - 2023-10-13 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
OFT |
Conference Code |
2023-10-OFT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Proposal of differential spectrum scheme in Brillouin optical correlation-domain reflectometry |
Sub Title (in English) |
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Keyword(1) |
Optical fiber sensing |
Keyword(2) |
Brillouin scattering |
Keyword(3) |
Distributed measurement |
Keyword(4) |
Correlation-domain techniques |
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1st Author's Name |
Ryo Inoue |
1st Author's Affiliation |
Shibaura Institute of Technology (SIT) |
2nd Author's Name |
Haruki Sasage |
2nd Author's Affiliation |
Shibaura Institute of Technology (SIT) |
3rd Author's Name |
Yusei Shirai |
3rd Author's Affiliation |
Shibaura Institute of Technology (SIT) |
4th Author's Name |
Keita Kikuchi |
4th Author's Affiliation |
Shibaura Institute of Technology (SIT) |
5th Author's Name |
Yosuke Mizuno |
5th Author's Affiliation |
Yokohama National University (YNU) |
6th Author's Name |
Heeyoung Lee |
6th Author's Affiliation |
Shibaura Institute of Technology (SIT) |
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Speaker |
Author-1 |
Date Time |
2023-10-12 15:00:00 |
Presentation Time |
100 minutes |
Registration for |
OFT |
Paper # |
OFT2023-38 |
Volume (vol) |
vol.123 |
Number (no) |
no.210 |
Page |
pp.89-92 |
#Pages |
4 |
Date of Issue |
2023-10-05 (OFT) |
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