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Paper Abstract and Keywords
Presentation 2023-01-13 09:50
Bidirectional transoceanic-class transmission over step-index profile standard cladding 4-core fiber
Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani (KDDI Research, Inc.) OCS2022-64
Abstract (in Japanese) (See Japanese page) 
(in English) Multi-core fibers (MCFs), a type of space-division multiplexing (SDM) technology, have been investigated to overcome the theoretical transmission capacity limitation in standard single-mode fibers. Two types of weakly coupled MCFs have been proposed: a step-index (SI) profile MCF (SI-MCF) with a stepped refractive index profile and a trench-assisted MCF (TA-MCF) with a trench structure to suppress crosstalk (XT) between cores. Although SI-MCFs have a simple refractive index profile compared to TA-MCFs and can be expected to have superior manufacturability for mass production, the transmission distance is limited by the relatively large core-to-core XT. To suppress the degradation of the transmission performance due to core-to-core XT to achieve MCF long-haul transmission, bidirectional transmission technologies have been proposed. In this paper, we experimentally demonstrated transoceanic-class MCF transmission using standard cladding SI-type 4-core fibers with bidirectional transmission technology. 4-SDM/16-WDM channels modulated with 24-Gbaud dual-polarization QPSK are successfully transmitted over 7,000 km with no impact of core-to-core XT.
Keyword (in Japanese) (See Japanese page) 
(in English) Space-division Multiplexing / Multi-core Fiber / Standard Cladding Diameter / Bidirectional Transmission / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 332, OCS2022-64, pp. 22-26, Jan. 2023.
Paper # OCS2022-64 
Date of Issue 2023-01-05 (OCS) 
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 OCS2022-64

Conference Information
Committee OCS CS  
Conference Date 2023-01-12 - 2023-01-13 
Place (in Japanese) (See Japanese page) 
Place (in English) CANAL CITY HAKATA 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2023-01-OCS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Bidirectional transoceanic-class transmission over step-index profile standard cladding 4-core fiber 
Sub Title (in English)  
Keyword(1) Space-division Multiplexing  
Keyword(2) Multi-core Fiber  
Keyword(3) Standard Cladding Diameter  
Keyword(4) Bidirectional Transmission  
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1st Author's Name Daiki Soma  
1st Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
2nd Author's Name Shohei Beppu  
2nd Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
3rd Author's Name Noboru Yoshikane  
3rd Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
4th Author's Name Takehiro Tsuritani  
4th Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
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Speaker Author-1 
Date Time 2023-01-13 09:50:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2022-64 
Volume (vol) vol.122 
Number (no) no.332 
Page pp.22-26 
#Pages 5 
Date of Issue 2023-01-05 (OCS) 

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