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Paper Abstract and Keywords
Presentation 2020-10-23 09:05
A study on Kramers-Kronig receivers with regard to reduction of penalties due to sampling
Kentaro Toba, Takaha Fujita, Enzo Tsukui, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2020-8 OPE2020-31 LQE2020-11
Abstract (in Japanese) (See Japanese page) 
(in English) The direct detection method that reconstructs phase information using Kramers-Kronig (KK) relation is attracting attention for data center interconnects in the next generation. However, this method requires both high-speed A/D conversion (ADC) and high carrier-to-signal power ratio (CSPR). We have proposed a method to relax the requirements for ADC sampling rate and for CSPR by removing harmonics which result from two nonlinear operations: square-root and logarithm. In this report, we numerically investigated the relation between digital upsampling that be needed for elimination of harmonics and performance improvement by the proposed method. It is predicted that the proposed method will be effective by removing the harmonics by logarithmic operation with upsampled rate of three or four times the Nyquist rate.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber communications / Kramers-Kronig relation / Direct detection / Digital upsample / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 206, OCS2020-8, pp. 1-6, Oct. 2020.
Paper # OCS2020-8 
Date of Issue 2020-10-16 (OCS, 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 OCS2020-8 OPE2020-31 LQE2020-11

Conference Information
Committee OPE OCS LQE  
Conference Date 2020-10-23 - 2020-10-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2020-10-OPE-OCS-LQE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on Kramers-Kronig receivers with regard to reduction of penalties due to sampling 
Sub Title (in English)  
Keyword(1) Optical fiber communications  
Keyword(2) Kramers-Kronig relation  
Keyword(3) Direct detection  
Keyword(4) Digital upsample  
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1st Author's Name Kentaro Toba  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Takaha Fujita  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
3rd Author's Name Enzo Tsukui  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
4th Author's Name Kariyawasam Indipalage Amila Sampath  
4th Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
5th Author's Name Joji Maeda  
5th Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2020-10-23 09:05:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2020-8, OPE2020-31, LQE2020-11 
Volume (vol) vol.120 
Number (no) no.206(OCS), no.207(OPE), no.208(LQE) 
Page pp.1-6 
#Pages 6 
Date of Issue 2020-10-16 (OCS, OPE, LQE) 

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