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Paper Abstract and Keywords
Presentation 2013-01-24 16:00
Proposal and experimental verification of synthetic Brillouin optical time-domain reflectometry
Ken'ichi Nishiguchi (Osaka Univ.), Li Che-Hsien, Artur Guzik, Kinzo Kishida (Neubrex) OFT2012-58
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a novel method to improve the spatial resolution of Brillouin optical time-domain reflectometry (BOTDR), which is referred to as Synthetic BOTDR (S-BOTDR), and experimentally verify the resolution improvements. Due to the uncertainty relation between position and frequency, the spatial resolution of a conventional BOTDR system has been limited to about one meter. In S-BOTDR, a synthetic spectrum is obtained by combining four Brillouin spectrums measured with different composite pump lights and different composite low-pass filters. We mathematically show that the resolution limit in principle for conventional BOTDR could be overcome by S-BOTDR and experimentally prove that 10-cm spatial resolution, which is much smaller than the conventional BOTDR limit, was attained by S-BOTDR.
Keyword (in Japanese) (See Japanese page) 
(in English) Brillouin scattering / distributed sensing / strain/temperature sensing / synthetic spectrum / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 403, OFT2012-58, pp. 31-36, Jan. 2013.
Paper # OFT2012-58 
Date of Issue 2013-01-17 (OFT) 
ISSN Print edition: ISSN 0913-5685  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 2013-01-24 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To OFT 
Conference Code 2013-01-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal and experimental verification of synthetic Brillouin optical time-domain reflectometry 
Sub Title (in English)  
Keyword(1) Brillouin scattering  
Keyword(2) distributed sensing  
Keyword(3) strain/temperature sensing  
Keyword(4) synthetic spectrum  
1st Author's Name Ken'ichi Nishiguchi  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Li Che-Hsien  
2nd Author's Affiliation Neubrex Co. Ltd (Neubrex)
3rd Author's Name Artur Guzik  
3rd Author's Affiliation Neubrex Co. Ltd (Neubrex)
4th Author's Name Kinzo Kishida  
4th Author's Affiliation Neubrex Co. Ltd (Neubrex)
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Date Time 2013-01-24 16:00:00 
Presentation Time 25 
Registration for OFT 
Paper # IEICE-OFT2012-58 
Volume (vol) IEICE-112 
Number (no) no.403 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-OFT-2013-01-17 

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