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Presentation 2022-01-28 09:00
Beyond 1 Peta-bps Optical Switches Using Nyquist WDM
Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.), Ken-ichi Sato (AIST) PN2021-40 EMT2021-56 MWP2021-45 Link to ES Tech. Rep. Archives: EMT2021-56 MWP2021-45
Abstract (in Japanese) (See Japanese page) 
(in English) To process exponentially increasing intra-datacenter traffic cost-effectively, high-throughput optical circuit switches are needed. So far, optical switch architecture based on the combination of delivery-and-coupling space switches and wavelength-routing switches has proposed. To increase the switch throughput further, spectrum efficiency of the wavelength-routing switch must be enhanced. The introduction of Nyquist wavelength-division multiplexing (WDM) technology can enhance the spectrum efficiency. However, Nyquist WDM signals are severely impaired by spectrum narrowing caused by arrayed waveguide gratings (AWGs) within the wavelength-routing switch. In this paper, we demonstrate a high-throughput optical circuit switch that can adopt Nyquist WDM technology. Our proposed wavelength-routing switch includes a pair of AWGs whose passbands are interleaved. With the wavelength-routing switch, Nyquist WDM signals can be demultiplexed without spectrum narrowing. We evaluated the performance of our proposed switch using a pair of AWGs implemented by planar lightwave circuit technologies. Experiments show the total switch throughput of 8.512 Pbps.
Keyword (in Japanese) (See Japanese page) 
(in English) Datacenter network / Optical switch / Nyquist wavelength-division multiplexing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 350, PN2021-40, pp. 41-45, Jan. 2022.
Paper # PN2021-40 
Date of Issue 2022-01-20 (PN, EMT, MWP) 
ISSN 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)
Download PDF PN2021-40 EMT2021-56 MWP2021-45 Link to ES Tech. Rep. Archives: EMT2021-56 MWP2021-45

Conference Information
Conference Date 2022-01-27 - 2022-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PN 
Conference Code 2022-01-PN-MWP-EMT-PEM-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Beyond 1 Peta-bps Optical Switches Using Nyquist WDM 
Sub Title (in English)  
Keyword(1) Datacenter network  
Keyword(2) Optical switch  
Keyword(3) Nyquist wavelength-division multiplexing  
1st Author's Name Takuma Kuno  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takumi Mitsuya  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Yojiro Mori  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Hiroshi Hasegawa  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
5th Author's Name Ken-ichi Sato  
5th Author's Affiliation The National Institute of Advanced Industrial Science and Technology (AIST)
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Speaker Author-1 
Date Time 2022-01-28 09:00:00 
Presentation Time 25 minutes 
Registration for PN 
Paper # PN2021-40, EMT2021-56, MWP2021-45 
Volume (vol) vol.121 
Number (no) no.350(PN), no.351(EMT), no.352(MWP) 
Page pp.41-45 
Date of Issue 2022-01-20 (PN, EMT, MWP) 

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