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Paper Abstract and Keywords
Presentation 2022-10-13 10:50
[Poster Presentation] Operation of BOCDR using low-cost light source
Kouta Ozaki, Seiga Ochi (YNU), Kohei Noda (Tokyo Tech/YNU), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2022-27
Abstract (in Japanese) (See Japanese page) 
(in English) Distributed optical fiber sensors for strain and temperature have been attracting considerable attention because of their measurement capability of aging deterioration and disaster-cased damages of civil infrastructures. Among various techniques, we are focusing on the performance improvement of Brillouin optical correlation-domain reflectometry (BOCDR), which is based on spontaneous Brillouin scattering in optical fibers. Conventionally, relatively expensive lasers with narrow linewidths of 1 MHz or less have been used in BOCDR, because wider laser linewidth will lead to wider Brillouin gain spectrum (BGS) observed using self-heterodyne detection, and the accuracy of strain/temperature detection is largely deteriorated. In this study, we investigate the possibility of utilizing cost-effective wider-linewidth light sources in BOCDR to reduce its implementation cost. Herein, as a first step, we evaluate the BGS shapes using lasers with different linewidths (full-length measurement).
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber sensors / Brillouin scattering / Brillouin optical correlation-domain reflectometry (BOCDR) / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 210, OFT2022-27, pp. 36-38, Oct. 2022.
Paper # OFT2022-27 
Date of Issue 2022-10-06 (OFT) 
ISSN Online edition: ISSN 2432-6380
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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Conference Information
Committee OFT  
Conference Date 2022-10-13 - 2022-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanagawa-Kenmin Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2022-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Operation of BOCDR using low-cost light source 
Sub Title (in English)  
Keyword(1) Optical fiber sensors  
Keyword(2) Brillouin scattering  
Keyword(3) Brillouin optical correlation-domain reflectometry (BOCDR)  
1st Author's Name Kouta Ozaki  
1st Author's Affiliation Yokohama National University (YNU)
2nd Author's Name Seiga Ochi  
2nd Author's Affiliation Yokohama National University (YNU)
3rd Author's Name Kohei Noda  
3rd Author's Affiliation Tokyo Institute of Technology/Yokohama National University (Tokyo Tech/YNU)
4th Author's Name Heeyoung Lee  
4th Author's Affiliation Shibaura Institute of Technology (SIT)
5th Author's Name Kentaro Nakamura  
5th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
6th Author's Name Yosuke Mizuno  
6th Author's Affiliation Yokohama National University (YNU)
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Speaker Author-1 
Date Time 2022-10-13 10:50:00 
Presentation Time 70 minutes 
Registration for OFT 
Paper # OFT2022-27 
Volume (vol) vol.122 
Number (no) no.210 
Page pp.36-38 
Date of Issue 2022-10-06 (OFT) 

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