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Paper Abstract and Keywords
Presentation 2015-12-11 14:25
Identification of loss factors using 1-um-band mode-detection OTDR
Atsushi Nakamura, Keiji Okamoto, Yusuke Koshikiya, Tetsuya Manabe, Manabu Oguma, Toshikazu Hashimoto, Mikitaka Itoh (NTT) OFT2015-48
Abstract (in Japanese) (See Japanese page) 
(in English) Optical fiber cables exposed to long-term severe environmental conditions can cause loss increases due to deterioration. These potential fault locations and the factors should be identified before communication signals are affected, and they should be repaired or replaced. In order to locate fiber bends with high sensitivity, we have recently proposed 1-um-band mode-detection OTDR, which enables us to individually observe the fundamental (LP01) and the second-order (LP11) modes of the backscattered light generated in the two-mode region of the fiber. In this paper, we propose a novel diagnostic technique for identifying loss factors by evaluating the loss ratio of the LP01 to LP11 modes of the backscattered light obtained with 1-um-band mode-detection OTDR.
Keyword (in Japanese) (See Japanese page) 
(in English) OTDR / Higher-order mode / Bending loss / Splice loss / Maintenance / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 360, OFT2015-48, pp. 13-16, Dec. 2015.
Paper # OFT2015-48 
Date of Issue 2015-12-04 (OFT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee OFT  
Conference Date 2015-12-11 - 2015-12-11 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications (Tokyo) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2015-12-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Identification of loss factors using 1-um-band mode-detection OTDR 
Sub Title (in English)  
Keyword(1) OTDR  
Keyword(2) Higher-order mode  
Keyword(3) Bending loss  
Keyword(4) Splice loss  
Keyword(5) Maintenance  
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Keyword(7)  
Keyword(8)  
1st Author's Name Atsushi Nakamura  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Keiji Okamoto  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Yusuke Koshikiya  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Tetsuya Manabe  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
5th Author's Name Manabu Oguma  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
6th Author's Name Toshikazu Hashimoto  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
7th Author's Name Mikitaka Itoh  
7th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2015-12-11 14:25:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2015-48 
Volume (vol) vol.115 
Number (no) no.360 
Page pp.13-16 
#Pages 4 
Date of Issue 2015-12-04 (OFT) 

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