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Paper Abstract and Keywords
Presentation 2009-07-29 16:40
Highly-sensitive optical multilevel transmission with direct detection
Nobuhiko Kikuchi, Shinya Sasaki (Hitachi) OCS2009-27
Abstract (in Japanese) (See Japanese page) 
(in English) An optical direct-detection (incoherent) multilevel signaling is one of the candidate of realizing next-generation cost-efficient high-capacity optical transceivers. We adopt receiver-side signal processing, “MSPE (multi symbol phase estimation)” and “non-Euclidean metric based symbol detection” to improve its OSNR sensitivity. We have performed up to 160-km standard single-mode fiber transmission of 40-Gbit/s 16QAM signals with digital pre-distortion of fiber chromatic dispersion and achieved the OSNR sensitivities only 0.5 to 1.5 dB away from those of coherent detection.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber communication / Multilevel modulation / QAM / Phase noise / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 154, OCS2009-27, pp. 43-47, July 2009.
Paper # OCS2009-27 
Date of Issue 2009-07-22 (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 OCS2009-27

Conference Information
Committee OCS  
Conference Date 2009-07-29 - 2009-07-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Welcity Yugawara 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2009-07-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Highly-sensitive optical multilevel transmission with direct detection 
Sub Title (in English)  
Keyword(1) Optical fiber communication  
Keyword(2) Multilevel modulation  
Keyword(3) QAM  
Keyword(4) Phase noise  
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1st Author's Name Nobuhiko Kikuchi  
1st Author's Affiliation Hitachi Ltd., (Hitachi)
2nd Author's Name Shinya Sasaki  
2nd Author's Affiliation Hitachi Ltd., (Hitachi)
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Speaker Author-1 
Date Time 2009-07-29 16:40:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2009-27 
Volume (vol) vol.109 
Number (no) no.154 
Page pp.43-47 
#Pages 5 
Date of Issue 2009-07-22 (OCS) 

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