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Paper Abstract and Keywords
Presentation 2020-10-09 15:20
Distributed measurement of polarization state using OCDR
Kohei Noda (Tokyo Tech), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2020-36
Abstract (in Japanese) (See Japanese page) 
(in English) Optical fiber sensors have been extensively studied owing to their advantages such as long-range measurement, light weight, etc. As the state of polarization (SOP) in optical fibers is highly sensitive to various physical parameters including lateral pressure, bending, and magnetic field, various types of SOP-based sensors have been developed. To date, time-domain and frequency-domain configurations for measuring the SOP distribution along optical fibers have been reported, but the correlation-domain configuration (i.e., optical correlation-domain reflectometry (OCDR)), which has such unique advantages as random accessibility and real-time operation, has not been employed to measure SOPs so far. In this work, we newly develop a correlation-domain system for distributed measurement of the SOP of the backscattered light. Our method operates on the basis of the physical nature that the interference power of the reference and signal lights depends on the inner product of their Stokes vectors. We experimentally demonstrate the operation of this “polarization-sensitive OCDR (POCDR)” by measuring the SOP distribution of the light backscattered from a sensing fiber that is partially bent to induce linear birefringence.
Keyword (in Japanese) (See Japanese page) 
(in English) optical fiber sensing / optical correlation- domain reflectometry (OCDR) / state of polarization (SOP) / distributed polarization state sensors / distributed lateral pressure sensors / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 184, OFT2020-36, pp. 118-121, Oct. 2020.
Paper # OFT2020-36 
Date of Issue 2020-10-01 (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)
Download PDF OFT2020-36

Conference Information
Committee OFT  
Conference Date 2020-10-08 - 2020-10-09 
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 2020-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Distributed measurement of polarization state using OCDR 
Sub Title (in English)  
Keyword(1) optical fiber sensing  
Keyword(2) optical correlation- domain reflectometry (OCDR)  
Keyword(3) state of polarization (SOP)  
Keyword(4) distributed polarization state sensors  
Keyword(5) distributed lateral pressure sensors  
1st Author's Name Kohei Noda  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Heeyoung Lee  
2nd Author's Affiliation Shibaura Institute of Technology (SIT)
3rd Author's Name Kentaro Nakamura  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Yosuke Mizuno  
4th Author's Affiliation Yokohama National University (YNU)
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Date Time 2020-10-09 15:20:00 
Presentation Time 25 
Registration for OFT 
Paper # IEICE-OFT2020-36 
Volume (vol) IEICE-120 
Number (no) no.184 
Page pp.118-121 
#Pages IEICE-4 
Date of Issue IEICE-OFT-2020-10-01 

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