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Paper Abstract and Keywords
Presentation 2022-11-07 14:35
[Invited Talk] Spot size converter having two stories employing anisotropic etching process
Hajime Tanaka (SEI), Ryuji Yamabi (SEDI), Takamitsu Kitamura (SEDI/SEI), Hotino Kazuhiko (SEDI), Ishikawa Tsutomu (SEI), Mitsuru Ekawa (SEDI/SEI) PN2022-25
Abstract (in Japanese) (See Japanese page) 
(in English) Coherent technology has been widely used from long haul to metro network. InP is a material having unique characteristics for realizing high speed modulation, and we have developed high speed and small size InP-based dual-polarization In-phase and Quadrature modulator. Spot size converter (SSC) is key structure for reducing optical loss between modulator and optical lens. However, SSC with low optical loss needed 2nd epitaxial growth to integrate with modulator. We demonstrated SSC having two stories employing anisotropic etching process with 1.3 dB loss in 1.52~1.58 m wavelength.
Keyword (in Japanese) (See Japanese page) 
(in English) SSC / Spot size converter / Anisotropic etching / In-phase and Quadrature modulator / InP / Coherent / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 242, PN2022-25, pp. 22-27, Nov. 2022.
Paper # PN2022-25 
Date of Issue 2022-10-31 (PN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee PN  
Conference Date 2022-11-07 - 2022-11-08 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Topics (in English)  
Paper Information
Registration To PN 
Conference Code 2022-11-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spot size converter having two stories employing anisotropic etching process 
Sub Title (in English)  
Keyword(1) SSC  
Keyword(2) Spot size converter  
Keyword(3) Anisotropic etching  
Keyword(4) In-phase and Quadrature modulator  
Keyword(5) InP  
Keyword(6) Coherent  
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Keyword(8)  
1st Author's Name Hajime Tanaka  
1st Author's Affiliation Sumitomo Electric Industries, Ltd. (SEI)
2nd Author's Name Ryuji Yamabi  
2nd Author's Affiliation SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC. (SEDI)
3rd Author's Name Takamitsu Kitamura  
3rd Author's Affiliation SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC./Sumitomo Electric Industries, Ltd. (SEDI/SEI)
4th Author's Name Hotino Kazuhiko  
4th Author's Affiliation SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC. (SEDI)
5th Author's Name Ishikawa Tsutomu  
5th Author's Affiliation Sumitomo Electric Industries, Ltd. (SEI)
6th Author's Name Mitsuru Ekawa  
6th Author's Affiliation SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC./Sumitomo Electric Industries, Ltd. (SEDI/SEI)
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Speaker Author-1 
Date Time 2022-11-07 14:35:00 
Presentation Time 50 minutes 
Registration for PN 
Paper # PN2022-25 
Volume (vol) vol.122 
Number (no) no.242 
Page pp.22-27 
#Pages
Date of Issue 2022-10-31 (PN) 


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