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Paper Abstract and Keywords
Presentation 2007-07-20 13:25
Reduction of phase noise of DQPSK signals by the use of fiber-based amplitude regenerator
Yasutaka Morioka, Masayuki Matsumoto (Osaka Univ.) OCS2007-26
Abstract (in Japanese) (See Japanese page) 
(in English) Quality of multilevel phase-shift-keying (PSK) signals such as QPSK and DQPSK is easily impaired by phase noise. Realization of signal regenerator which can reduce phase noise is desired to enable long transmission distance of such signals. In this paper a signal regenerator for DQPSK signals is proposed. In the regenerator, the noise on the signal is eliminated by the use of fiber-based all-optical 2R amplitude regenerators after the DQPSK signal is converted to OOK signals through the delay interferometers. The regenerated OOK signals then remodulate the phase of clock pulses by the effect of cross-phase modulation in nonlinear fibers. The effect of phase noise reduction is studied by theoretical analysis and numerical simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) DQPSK signal / all-optical signal regenerator / fiber nonlinearity / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 153, OCS2007-26, pp. 33-37, July 2007.
Paper # OCS2007-26 
Date of Issue 2007-07-13 (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 OCS2007-26

Conference Information
Committee OCS  
Conference Date 2007-07-20 - 2007-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Denkoku-No-Mori (Yonezawa) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2007-07-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Reduction of phase noise of DQPSK signals by the use of fiber-based amplitude regenerator 
Sub Title (in English)  
Keyword(1) DQPSK signal  
Keyword(2) all-optical signal regenerator  
Keyword(3) fiber nonlinearity  
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1st Author's Name Yasutaka Morioka  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masayuki Matsumoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2007-07-20 13:25:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2007-26 
Volume (vol) vol.107 
Number (no) no.153 
Page pp.33-37 
#Pages 5 
Date of Issue 2007-07-13 (OCS) 

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