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Paper Abstract and Keywords
Presentation 2018-01-30 13:50
56-Gbaud PAM4 Transmission over 2-km 125-um-Cladding 4-Core Multicore Fiber
Shohei Beppu, Hidenori Takahashi (KDDI Research, Inc.), Tomohiro Gonda, Katsunori Imamura, Kengo Watanabe, Ryuichi Sugizaki (Furukawa Electric.), Takehiro Tsuritani (KDDI Research, Inc.) OCS2017-78
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, data center traffic has dramatically increased due to the continuous growth of cloud services and mobile services. To efficiently accommodate the huge data center traffic, the speed of optical interconnections must continue to increase toward beyond 100Gb/s. In IEEE 802.3bs, 400GbE standard has been actively discussed and the promising candidates for optical transmission are 100-Gb/s 4-level pulse amplitude modulation (PAM4) signals with four parallel single mode fibers (PSM4) less than 500 m (: 400GBASE-PSM4/DR4). However, introducing PSM4 couldn’t dramatically improve spatial efficiency although it is significant for data center cabling. For further increase of the system capacity and spatial efficiency simultaneously, space-division multiplexing (SDM) fiber has been investigated recently. In this work, aiming to migrate PSM4 to MCF, 56-Gbaud PAM4 signal transmission over a 2-km 125-um -cladding 5-core MCF [4] is demonstrated. We show the feasibility of single wavelength and single fiber 400-Gb/s transmission using 4 cores in 125-um cladding MCF without PSM4 unlike 400GBASE-PSM4/DR4. In addition, 1.6-Tb/s transmissions over O-band or C/L-band are also demonstrated by combining wavelength-division multiplexing (WDM) such as LAN-WDM and CWDM with the SDM.
Keyword (in Japanese) (See Japanese page) 
(in English) Space-division multiplexing (SDM) / Multi Core Fiber (MCF) / Data Center / 400GbE / Ethernet / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 423, OCS2017-78, pp. 63-66, Jan. 2018.
Paper # OCS2017-78 
Date of Issue 2018-01-22 (OCS) 
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)
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Conference Information
Committee CS OCS  
Conference Date 2018-01-29 - 2018-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core and metro system, Submarine telecommunications system, Optical access system and next generation PON, Ethernet, Optical Transport Network (OTN), Transmission monitoring and control, Design and tool for optical transmission system, Co-operation between optical and mobile, etc. 
Paper Information
Registration To OCS 
Conference Code 2018-01-CS-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 56-Gbaud PAM4 Transmission over 2-km 125-um-Cladding 4-Core Multicore Fiber 
Sub Title (in English)  
Keyword(1) Space-division multiplexing (SDM)  
Keyword(2) Multi Core Fiber (MCF)  
Keyword(3) Data Center  
Keyword(4) 400GbE  
Keyword(5) Ethernet  
1st Author's Name Shohei Beppu  
1st Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
2nd Author's Name Hidenori Takahashi  
2nd Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
3rd Author's Name Tomohiro Gonda  
3rd Author's Affiliation Furukawa Electric. (Furukawa Electric.)
4th Author's Name Katsunori Imamura  
4th Author's Affiliation Furukawa Electric. (Furukawa Electric.)
5th Author's Name Kengo Watanabe  
5th Author's Affiliation Furukawa Electric. (Furukawa Electric.)
6th Author's Name Ryuichi Sugizaki  
6th Author's Affiliation Furukawa Electric. (Furukawa Electric.)
7th Author's Name Takehiro Tsuritani  
7th Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
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Date Time 2018-01-30 13:50:00 
Presentation Time 25 
Registration for OCS 
Paper # IEICE-OCS2017-78 
Volume (vol) IEICE-117 
Number (no) no.423 
Page pp.63-66 
#Pages IEICE-4 
Date of Issue IEICE-OCS-2018-01-22 

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