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Paper Abstract and Keywords
Presentation 2026-06-09 16:45
[Special Invited Talk] Applicability of Homogeneous/Heterogeneous Multi-core Fibers for Submarine Cables
Ryota Imada, Takayoshi Mori, Masashi Kikuchi, Kazutaka Noto, Hiroyuki Iida, Kiyoshi Kamimura, Taro Iwaya, Takashi Matsui, Tomoya Shimizu (NTT) OCS2026-9 OFT2026-18 OPE2026-9 LQE2026-9
Abstract (in Japanese) (See Japanese page) 
(in English) This paper investigates the applicability of weakly-coupled four-core fibers compatible with ITU-T G.654 standards to submarine cable. We evaluated the cabling-process-induced variations and temperature dependence of optical loss and inter-core crosstalk. Although different trends were observed between homogeneous-core and heterogeneous-core structures, both exhibited excellent optical characteristics that support bidirectional transmission over 10,000 km. These results are expected to accelerate the application of multi-core fibers to long-haul submarine transmission systems.
Keyword (in Japanese) (See Japanese page) 
(in English) Space-division multiplexing / Multi-core fiber / Submarine cable / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 60, OFT2026-18, pp. 34-37, June 2026.
Paper # OFT2026-18 
Date of Issue 2026-06-02 (OCS, OFT, OPE, LQE) 
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 OCS2026-9 OFT2026-18 OPE2026-9 LQE2026-9

Conference Information
Committee LQE OCS OFT OPE  
Conference Date 2026-06-09 - 2026-06-09 
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 2026-06-LQE-OCS-OFT-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Applicability of Homogeneous/Heterogeneous Multi-core Fibers for Submarine Cables 
Sub Title (in English)  
Keyword(1) Space-division multiplexing  
Keyword(2) Multi-core fiber  
Keyword(3) Submarine cable  
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1st Author's Name Ryota Imada  
1st Author's Affiliation NTT, Inc. (NTT)
2nd Author's Name Takayoshi Mori  
2nd Author's Affiliation NTT, Inc. (NTT)
3rd Author's Name Masashi Kikuchi  
3rd Author's Affiliation NTT, Inc. (NTT)
4th Author's Name Kazutaka Noto  
4th Author's Affiliation NTT, Inc. (NTT)
5th Author's Name Hiroyuki Iida  
5th Author's Affiliation NTT, Inc. (NTT)
6th Author's Name Kiyoshi Kamimura  
6th Author's Affiliation NTT, Inc. (NTT)
7th Author's Name Taro Iwaya  
7th Author's Affiliation NTT, Inc. (NTT)
8th Author's Name Takashi Matsui  
8th Author's Affiliation NTT, Inc. (NTT)
9th Author's Name Tomoya Shimizu  
9th Author's Affiliation NTT, Inc. (NTT)
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Speaker Author-1 
Date Time 2026-06-09 16:45:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OCS2026-9, OFT2026-18, OPE2026-9, LQE2026-9 
Volume (vol) vol.126 
Number (no) no.59(OCS), no.60(OFT), no.61(OPE), no.62(LQE) 
Page pp.34-37 
#Pages 4 
Date of Issue 2026-06-02 (OCS, OFT, OPE, LQE) 

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