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Paper Abstract and Keywords
Presentation 2020-11-13 14:55
Notchless spectra realized by Brillouin optical correlation domain analysis using pulse train arranged at power intervals
Daiki Miyake, Yudai Hattori, Fumihiko Ito (Shimane Univ.) OFT2020-41
Abstract (in Japanese) (See Japanese page) 
(in English) A signal using pulse trains arranged at power intervals applicable to the correlation domain analysis is proposed. The accuracy of Brillouin spectra measured by conventional correlation domain analysis method may be reduced due to the notch of uncorrelated gain. On the other hand, the uncorrelated gain of the proposed method is flat and does not degrade the accuracy of the detection of the peak gain frequency, so it can be measured with high accuracy. In the empirical experiment, the measurement of the distribution over 94 m fiber with a spatial resolution of 5 cm was demonstrated and a distinct change in the Brillouin frequency shift was observed.
Keyword (in Japanese) (See Japanese page) 
(in English) Brillouin scattering / Optical fiber sensors / The correlation-domain analysis / Sensing of strain and tenperture / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 230, OFT2020-41, pp. 21-26, Nov. 2020.
Paper # OFT2020-41 
Date of Issue 2020-11-05 (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
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)  
Paper Information
Registration To OFT 
Conference Code 2020-11-OFT-BCT-OCS-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Notchless spectra realized by Brillouin optical correlation domain analysis using pulse train arranged at power intervals 
Sub Title (in English)  
Keyword(1) Brillouin scattering  
Keyword(2) Optical fiber sensors  
Keyword(3) The correlation-domain analysis  
Keyword(4) Sensing of strain and tenperture  
1st Author's Name Daiki Miyake  
1st Author's Affiliation Shimane University (Shimane Univ.)
2nd Author's Name Yudai Hattori  
2nd Author's Affiliation Shimane University (Shimane Univ.)
3rd Author's Name Fumihiko Ito  
3rd Author's Affiliation Shimane University (Shimane Univ.)
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Speaker Author-1 
Date Time 2020-11-13 14:55:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2020-41 
Volume (vol) vol.120 
Number (no) no.230 
Page pp.21-26 
Date of Issue 2020-11-05 (OFT) 

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