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Paper Abstract and Keywords
Presentation 2022-11-18 16:05
[Special Invited Talk] Proposal and Demonstration of Free-Space Optical Communication Using Lens-Free Photonic-Crystal Surface-Emitting Laser
Shota Ishimura (KDDI Research), Ryohei Morita, Takuya Inoue (Kyoto Univ.), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani (KDDI Research), Menaka De Zoysa, Kenji Ishizaki (Kyoto Univ.), Masatoshi Suzuki (KDDI Research), Susumu Noda (Kyoto Univ.) OCS2022-57 OPE2022-92 LQE2022-55
Abstract (in Japanese) (See Japanese page) 
(in English) In this talk, we present the first demonstration of free-space optical (FSO) communication using a photonic-crystal surface-emitting laser (PCSEL), which was reported in an ECOC post-deadline session. Since a PCSEL achieves much larger-area single-mode coherent lasing compared to other types of lasers, it maintains an excellent beam profile over a very wide area, while enabling watt-class high-power operation and much smaller beam divergence angle. Therefore, it becomes possible to replace conventional bulky transmitter components such as optical amplifiers and lens systems for beam collimation with a single PCSEL, leading to drastic simplification of FSO transmitters. In the demonstration, we successfully transmitted an optical signal directly modulated using a PCSEL over a free space of 1.1 m without using any lenses at the transmitter.
Keyword (in Japanese) (See Japanese page) 
(in English) PCSEL / Free-space optical communications / OFDM / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 263, LQE2022-55, pp. 25-29, Nov. 2022.
Paper # LQE2022-55 
Date of Issue 2022-11-11 (OCS, OPE, LQE) 
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 OCS2022-57 OPE2022-92 LQE2022-55

Conference Information
Committee OPE LQE OCS  
Conference Date 2022-11-18 - 2022-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2022-11-OPE-LQE-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal and Demonstration of Free-Space Optical Communication Using Lens-Free Photonic-Crystal Surface-Emitting Laser 
Sub Title (in English)  
Keyword(1) PCSEL  
Keyword(2) Free-space optical communications  
Keyword(3) OFDM  
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1st Author's Name Shota Ishimura  
1st Author's Affiliation KDDI Research. (KDDI Research)
2nd Author's Name Ryohei Morita  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Takuya Inoue  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Kosuke Nishimura  
4th Author's Affiliation KDDI Research. (KDDI Research)
5th Author's Name Hidenori Takahashi  
5th Author's Affiliation KDDI Research. (KDDI Research)
6th Author's Name Takehiro Tsuritani  
6th Author's Affiliation KDDI Research. (KDDI Research)
7th Author's Name Menaka De Zoysa  
7th Author's Affiliation Kyoto University (Kyoto Univ.)
8th Author's Name Kenji Ishizaki  
8th Author's Affiliation Kyoto University (Kyoto Univ.)
9th Author's Name Masatoshi Suzuki  
9th Author's Affiliation KDDI Research. (KDDI Research)
10th Author's Name Susumu Noda  
10th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2022-11-18 16:05:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # OCS2022-57, OPE2022-92, LQE2022-55 
Volume (vol) vol.122 
Number (no) no.261(OCS), no.262(OPE), no.263(LQE) 
Page pp.25-29 
#Pages 5 
Date of Issue 2022-11-11 (OCS, OPE, LQE) 

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