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Paper Abstract and Keywords
Presentation 2021-05-14 15:10
Distributed strain measurement using stimulated Brillouin scattering pumped by orthogonal two-wavelength pulses
Kenichiro Tsuji, Tomoyuki Uehara (NDA) OFT2021-10
Abstract (in Japanese) (See Japanese page) 
(in English) In the distributed strain measurement with a conventional BOTDA using stimulated Brillouin scattering, a polarization scrambler has been used to reduce polarization dependence of the Brillouin gain. In this report, we propose and investigate a simple BOTDA method using orthogonal two-wavelength pump pulses, which are passively produced by a birefringent optical fiber to reduce the polarization dependence of the Brillouin gain. The experimental results show that the fluctuation of the Brillouin gain along the sensing fiber is well suppressed by the orthogonal two-wavelength pulses. The successful distributed strain measurement using the proposed method is demonstrated.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber sensing / Distributed strain measurement / Stimulated Brillouin scattering / BOTDA / Birefringent fiber / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 18, OFT2021-10, pp. 40-43, May 2021.
Paper # OFT2021-10 
Date of Issue 2021-05-06 (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)
Download PDF OFT2021-10

Conference Information
Committee OFT  
Conference Date 2021-05-13 - 2021-05-14 
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 2021-05-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Distributed strain measurement using stimulated Brillouin scattering pumped by orthogonal two-wavelength pulses 
Sub Title (in English)  
Keyword(1) Optical fiber sensing  
Keyword(2) Distributed strain measurement  
Keyword(3) Stimulated Brillouin scattering  
Keyword(4) BOTDA  
Keyword(5) Birefringent fiber  
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Keyword(8)  
1st Author's Name Kenichiro Tsuji  
1st Author's Affiliation National Defense Academy (NDA)
2nd Author's Name Tomoyuki Uehara  
2nd Author's Affiliation National Defense Academy (NDA)
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Speaker Author-1 
Date Time 2021-05-14 15:10:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2021-10 
Volume (vol) vol.121 
Number (no) no.18 
Page pp.40-43 
#Pages 4 
Date of Issue 2021-05-06 (OFT) 

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