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| Paper Abstract and Keywords | ||
| Presentation | 2023-06-08 15:25 [Invited Talk] Multi-Terabit Optical Transmission with Ultra High Symbol Rate Signal Generation and Detection Technologies Masanori Nakamura (NTT)  NS2023-26 OCS2023-12 PN2023-8 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | With the rapid increase of network traffic, expansion of transmission capacity per wavelength of a digital coherent optical transmission system is required. This paper describes multi-terabit transmission experiments using high-speed and multi-level signals by combining ultra-wideband devices, digital signal processing, and modulation/demodulation technologies. We generated multi-level and ultra-high symbol rate signals of 160 to 256 GBaud using an in-house InP-DHBT electrical amplifier with a bandwidth of >130 GHz. Then, we have successfully demonstrated a net bitrate of 2.11 Tb/s signal detection and 2.02 Tb/s transmission over 240 km based on entropy and code rate optimized 176-GBaud PCS144QAM signal. We also proposed a sequence estimation detection that can be applied to multilevel signals and soft-decision error correction codes to improve the decoding performance of ultra-high symbol rate signals and demonstrated that the proposed detection can improve the decoding performance of the 256-GBaud 16QAM signals. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Digital coherent optical transmission / High symbol rate signal generation and detection / Optical modulation and demodulation / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 69, OCS2023-12, pp. 16-21, June 2023. | |
| Paper # | OCS2023-12 | |
| Date of Issue | 2023-06-01 (NS, OCS, PN) | |
| 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 | NS2023-26 OCS2023-12 PN2023-8 |
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| Conference Information | |
| Committee | PN NS OCS |
| Conference Date | 2023-06-08 - 2023-06-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OCS |
| Conference Code | 2023-06-PN-NS-OCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multi-Terabit Optical Transmission with Ultra High Symbol Rate Signal Generation and Detection Technologies |
| Sub Title (in English) | |
| Keyword(1) | Digital coherent optical transmission |
| Keyword(2) | High symbol rate signal generation and detection |
| Keyword(3) | Optical modulation and demodulation |
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| 1st Author's Name | Masanori Nakamura |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker | Author-1 |
| Date Time | 2023-06-08 15:25:00 |
| Presentation Time | 45 minutes |
| Registration for | OCS |
| Paper # | NS2023-26, OCS2023-12, PN2023-8 |
| Volume (vol) | vol.123 |
| Number (no) | no.68(NS), no.69(OCS), no.70(PN) |
| Page | pp.35-40(NS), pp.16-21(OCS), pp.16-21(PN) |
| #Pages | 6 |
| Date of Issue | 2023-06-01 (NS, OCS, PN) |
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