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Paper Abstract and Keywords
Presentation 2026-02-20 09:05
Application of graphene-doped polymer optical waveguide to the wavelength convertor
Ken Kuboyama (Keio Univ.), Naoki Yamaguchi, Shinji Yamashita, Sze Yum Set (RCAST), Takaaki Ishigure (Keio Univ.) OCS2025-67 OFT2025-90 OPE2025-109
Abstract (in Japanese) (See Japanese page) 
(in English) The nonlinear optical properties of CNT- and graphene-doped polymer waveguides fabricated using the Mosquito
method were evaluated. In all waveguides, passive mode-locking induced by saturable absorption and wavelength conversion
based on four-wave mixing were observed. Waveguides doped with graphene oxide (GO) were also investigated to suppress
nanocarbon aggregation; however, no enhancement in nonlinear optical properties was observed with GO doping, suggesting an
influence of the oxidation degree. These results demonstrate the potential of nanocarbon-doped polymer waveguides for optical
device applications.
Keyword (in Japanese) (See Japanese page) 
(in English) Mosquito method / graphene / polymer waveguide / FWM / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 362, OPE2025-109, pp. 47-52, Feb. 2026.
Paper # OPE2025-109 
Date of Issue 2026-02-12 (OCS, OFT, OPE) 
ISSN 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 OCS2025-67 OFT2025-90 OPE2025-109

Conference Information
Committee OCS OFT OPE  
Conference Date 2026-02-19 - 2026-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Minna-No-Kashikaigishitsu Naha-Asahimachi-Ten 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OPE 
Conference Code 2026-02-OCS-OFT-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Application of graphene-doped polymer optical waveguide to the wavelength convertor 
Sub Title (in English)  
Keyword(1) Mosquito method  
Keyword(2) graphene  
Keyword(3) polymer waveguide  
Keyword(4) FWM  
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Keyword(6)  
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Keyword(8)  
1st Author's Name Ken Kuboyama  
1st Author's Affiliation Graduate School of Science and Technology, Keio University (Keio Univ.)
2nd Author's Name Naoki Yamaguchi  
2nd Author's Affiliation Research Center for Advanced Science and Technology (RCAST)
3rd Author's Name Shinji Yamashita  
3rd Author's Affiliation Research Center for Advanced Science and Technology (RCAST)
4th Author's Name Sze Yum Set  
4th Author's Affiliation Research Center for Advanced Science and Technology (RCAST)
5th Author's Name Takaaki Ishigure  
5th Author's Affiliation Faculty of Science and Technology, Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2026-02-20 09:05:00 
Presentation Time 25 minutes 
Registration for OPE 
Paper # OCS2025-67, OFT2025-90, OPE2025-109 
Volume (vol) vol.125 
Number (no) no.360(OCS), no.361(OFT), no.362(OPE) 
Page pp.37-42(OCS), pp.23-28(OFT), pp.47-52(OPE) 
#Pages 6 
Date of Issue 2026-02-12 (OCS, OFT, OPE) 

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