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Paper Abstract and Keywords
Presentation 2026-02-20 13:35
Evaluation of the Effects of Tension Release during Cable Removal on the Remaining Communication Cable
Wataru Kokubo, Yosuke Imokawa, Goto Yukihiro, Nobuyuki Okano (NTT) OFT2025-98 OPE2025-117
Abstract (in Japanese) (See Japanese page) 
(in English) A cable removal method that allows cutting and removing communication cables without releasing tension was investigated to improve work efficiency. Previous studies confirmed that no optical loss occurs during cutting under single-span straight-line conditions. In this study, a multi-span test facility with two parallel cable lines was constructed, and an optical closure was installed at the pole–cable connection point. One cable line was cut and associated hardware was removed, and the effects on load redistribution, optical power variation, and fiber movement in the remaining cable were evaluated. The results showed that although temporary tension fluctuations occurred, optical loss remained within ±0.1 dB, and no significant fiber displacement or damage was observed. These findings indicate that the proposed method can be safely applied under multi-span conditions while maintaining communication quality and structural integrity.
Keyword (in Japanese) (See Japanese page) 
(in English) Communication Cable Removal / Tension Release / Optical Transmission Quality / Multi-span Overhead Facility / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 361, OFT2025-98, pp. 63-66, Feb. 2026.
Paper # OFT2025-98 
Date of Issue 2026-02-12 (OFT, OPE) 
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 OFT2025-98 OPE2025-117

Conference Information
Committee OCS OFT OPE  
Conference Date 2026-02-19 - 2026-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Minna-No-Kashikaigishitsu Naha-Asahimachi-Ten 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2026-02-OCS-OFT-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of the Effects of Tension Release during Cable Removal on the Remaining Communication Cable 
Sub Title (in English)  
Keyword(1) Communication Cable Removal  
Keyword(2) Tension Release  
Keyword(3) Optical Transmission Quality  
Keyword(4) Multi-span Overhead Facility  
Keyword(5)  
Keyword(6)  
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1st Author's Name Wataru Kokubo  
1st Author's Affiliation NTT, Inc. (NTT)
2nd Author's Name Yosuke Imokawa  
2nd Author's Affiliation NTT, Inc. (NTT)
3rd Author's Name Goto Yukihiro  
3rd Author's Affiliation NTT, Inc. (NTT)
4th Author's Name Nobuyuki Okano  
4th Author's Affiliation NTT, Inc. (NTT)
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Speaker Author-1 
Date Time 2026-02-20 13:35:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2025-98, OPE2025-117 
Volume (vol) vol.125 
Number (no) no.361(OFT), no.362(OPE) 
Page pp.63-66(OFT), pp.87-90(OPE) 
#Pages 4 
Date of Issue 2026-02-12 (OFT, OPE) 

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