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Paper Abstract and Keywords
Presentation 2012-01-27 16:40
Absorption Balancing of Semiconductor Mach-Zehnder Modulator
Keisuke Matsuda, Keita Mochizuki, Takashi Sugihara, Hiroshi Aruga (Mitsubishi Electric Corp.) PN2011-79 OPE2011-195 LQE2011-181 EST2011-129 MWP2011-97
Abstract (in Japanese) (See Japanese page) 
(in English) Semiconductor Mach-Zehnder (MZ) Modulators generally use quantum-confined-Stark effect (QCSE) at the phase modulation waveguides. The QCSE causes light absorption corresponding to refractive index change. Because this relation is owing to Kramers-Kronig relation, the absorption is inevitable in phase modulation by semiconductor MZ modulators. Unbalance of the absorption change between two arms of MZ Modulator results in difference between output light intensities of different symbols and deterioration of the Q factor of the modulator. In this paper, we propose a novel method of balancing light absorption at two arms of a semiconductor MZ modulator, and confirmed it both theoretically and experimentally. It depressed the symbol intensity difference within 0.1 dB and the Q factor was improved in 10Gbps differential-phase-shift-keying format by 1.4dB.
Keyword (in Japanese) (See Japanese page) 
(in English) Compound Semiconductor / Mach-Zehnder Modulator / DPSK / / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 414, LQE2011-181, pp. 319-322, Jan. 2012.
Paper # LQE2011-181 
Date of Issue 2012-01-19 (PN, OPE, LQE, EST, MWP) 
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 PN2011-79 OPE2011-195 LQE2011-181 EST2011-129 MWP2011-97

Conference Information
Committee EMT PN LQE OPE MWP EST IEE-EMT  
Conference Date 2012-01-26 - 2012-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Convention Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photonic integrated circuits and devices, swtiching, PLC, fiber devices, waveguide analysis, and others 
Paper Information
Registration To LQE 
Conference Code 2012-01-EMT-PN-LQE-OPE-MWP-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Absorption Balancing of Semiconductor Mach-Zehnder Modulator 
Sub Title (in English)  
Keyword(1) Compound Semiconductor  
Keyword(2) Mach-Zehnder Modulator  
Keyword(3) DPSK  
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1st Author's Name Keisuke Matsuda  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
2nd Author's Name Keita Mochizuki  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
3rd Author's Name Takashi Sugihara  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
4th Author's Name Hiroshi Aruga  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
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Speaker Author-1 
Date Time 2012-01-27 16:40:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # PN2011-79, OPE2011-195, LQE2011-181, EST2011-129, MWP2011-97 
Volume (vol) vol.111 
Number (no) no.412(PN), no.413(OPE), no.414(LQE), no.415(EST), no.416(MWP) 
Page pp.319-322 
#Pages 4 
Date of Issue 2012-01-19 (PN, OPE, LQE, EST, MWP) 

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