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Paper Abstract and Keywords
Presentation 2024-01-23 12:50
Multiple-Parallel Interference Optical Modulators Based on Multi-Branched MMI Optical Couplers
Shotaro Yasumori, Keita Morimoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Shinya Nakajima, Kouichi Akahane (NICT) PN2023-61 EMT2023-101 MWPTHz2023-89
Abstract (in Japanese) (See Japanese page) 
(in English) Multiple-parallel interference optical modulators, where multiple phase-modulated lightwaves are directly interfered with each other, are investigated. We have designed a multi-branch optical coupler with adjustable optical split ratios based on a multi-mode interference (MMI) waveguide structure using Ti-diffused LiNbO3 waveguides and fabricated optical modulators with three-parallel and six-parallel interference structures. By adjusting intensity and phase of the carrier component of the modulated light spectrum, enlarging the modulation index and the precompensation of wavelength dispersion were experimentally confirmed using the three-parallel interference modulator. In addition, we designed a six-parallel interference optical modulator and demonstrated the operation of six-multiplication optical modulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Multimode interference coupler / Multiple-parallel optical modulator / LiNbO3 / Optical single-sideband modulation / Chromatic-dispersion compensation / Frequency multiplication / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 351, MWPTHz2023-89, pp. 74-77, Jan. 2024.
Paper # MWPTHz2023-89 
Date of Issue 2024-01-15 (PN, EMT, MWPTHz) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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 PN2023-61 EMT2023-101 MWPTHz2023-89

Conference Information
Committee EMT PN MWPTHz IEE-EMT  
Conference Date 2024-01-22 - 2024-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Yoshida Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MWPTHz 
Conference Code 2024-01-EMT-PN-MWPTHz-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multiple-Parallel Interference Optical Modulators Based on Multi-Branched MMI Optical Couplers 
Sub Title (in English)  
Keyword(1) Multimode interference coupler  
Keyword(2) Multiple-parallel optical modulator  
Keyword(3) LiNbO3  
Keyword(4) Optical single-sideband modulation  
Keyword(5) Chromatic-dispersion compensation  
Keyword(6) Frequency multiplication  
Keyword(7)  
Keyword(8)  
1st Author's Name Shotaro Yasumori  
1st Author's Affiliation University of Hyogo (Univ. of Hyogo)
2nd Author's Name Keita Morimoto  
2nd Author's Affiliation University of Hyogo (Univ. of Hyogo)
3rd Author's Name Tadashi Kawai  
3rd Author's Affiliation University of Hyogo (Univ. of Hyogo)
4th Author's Name Akira Enokihara  
4th Author's Affiliation University of Hyogo (Univ. of Hyogo)
5th Author's Name Shinya Nakajima  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Kouichi Akahane  
6th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2024-01-23 12:50:00 
Presentation Time 25 minutes 
Registration for MWPTHz 
Paper # PN2023-61, EMT2023-101, MWPTHz2023-89 
Volume (vol) vol.123 
Number (no) no.349(PN), no.350(EMT), no.351(MWPTHz) 
Page pp.74-77 
#Pages 4 
Date of Issue 2024-01-15 (PN, EMT, MWPTHz) 

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