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Paper Abstract and Keywords
Presentation 2013-05-17 13:25
Proposal of FFT-based Nonlinearity Monitoring Method for Digital Coherent Optical Transmission
Hideaki Kotake, Kohei Mandai, Nobuhiko Kikuchi (Hitachi) OCS2013-2
Abstract (in Japanese) (See Japanese page) 
(in English) Nonlinear optical effect which occurs inside the optical fiber (especially, XPM) is the predominant factor of the transmission impairment in long-haul WDM transmission. Thus, if we can monitor nonlinear degradation, signal quality of each fiber routes can be measured and optimization of optical network architecture can be realized. In this report, we proposed “FFT-based Nonlinearity Monitoring” as the new method to extract nonlinearity precisely in the frequency domain. We evaluated the monitoring performance of our proposed method by numerical simulations and experiments of 100G digital coherent PM-QPSK WDM transmission systems. As a result, we confirmed that the measured nonlinearity does not depend on OSNR value in numerical simulations and experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) Digital coherent optical transmission / Nonlinear optical effect / Nonlinearity monitoring / Fast Fourier Transform (FFT) / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 46, OCS2013-2, pp. 5-10, May 2013.
Paper # OCS2013-2 
Date of Issue 2013-05-10 (OCS) 
ISSN Print edition: ISSN 0913-5685    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 OCS2013-2

Conference Information
Committee OCS OPE  
Conference Date 2013-05-17 - 2013-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg(Tokyo) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical modulation format, Multi-level optical modulation, Coherent optical communication, Optical amplifier/repeater technology, Nonlinerity and polarization issue, Core/metro system, Undersea transmission system, Optical transmission system design/tool, etc. (OFC report) 
Paper Information
Registration To OCS 
Conference Code 2013-05-OCS-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of FFT-based Nonlinearity Monitoring Method for Digital Coherent Optical Transmission 
Sub Title (in English)  
Keyword(1) Digital coherent optical transmission  
Keyword(2) Nonlinear optical effect  
Keyword(3) Nonlinearity monitoring  
Keyword(4) Fast Fourier Transform (FFT)  
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1st Author's Name Hideaki Kotake  
1st Author's Affiliation Hitachi Ltd (Hitachi)
2nd Author's Name Kohei Mandai  
2nd Author's Affiliation Hitachi Ltd (Hitachi)
3rd Author's Name Nobuhiko Kikuchi  
3rd Author's Affiliation Hitachi Ltd (Hitachi)
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Speaker Author-1 
Date Time 2013-05-17 13:25:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2013-2 
Volume (vol) vol.113 
Number (no) no.46 
Page pp.5-10 
#Pages 6 
Date of Issue 2013-05-10 (OCS) 

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