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Paper Abstract and Keywords
Presentation 2025-05-22 15:05
Integration of Free-Space and SMF with PPLN for Green-to-C-Band Conversion
Kiichiro Kuwahara, Ayumu Kariya (Kagawa Univ.), Rikizo Ikuta (Osaka Univ.), Takahiro Kodama (Kagawa Univ.) OFT2025-1
Abstract (in Japanese) (See Japanese page) 
(in English) In 6G, the next-generation mobile communication standard, the development of non-terrestrial networks—including not only terrestrial but also aerial and underwater environments—is gaining attention. Among these, underwater IoT remains a largely unexplored area, where the establishment of foundational technologies that meet requirements such as high speed, large capacity, and low latency is essential. To efficiently transmit data acquired underwater to terrestrial data centers, wavelength conversion between the visible light band used for sensing and the C-band commonly used for terrestrial communications is necessary. However, conventional methods involve optical/electrical/optical conversion, which introduces latency as a significant issue. In this study, we conducted a proof-of-concept experiment of all-optical wavelength conversion using periodically poled lithium niobate and evaluated its effectiveness and performance characteristics.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical remote sensor / all-optical wavelength conversion / periodically poled lithium niobate / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 34, OFT2025-1, pp. 1-6, May 2025.
Paper # OFT2025-1 
Date of Issue 2025-05-15 (OFT) 
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 OFT2025-1

Conference Information
Committee OFT  
Conference Date 2025-05-22 - 2025-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2025-05-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Integration of Free-Space and SMF with PPLN for Green-to-C-Band Conversion 
Sub Title (in English)  
Keyword(1) Optical remote sensor  
Keyword(2) all-optical wavelength conversion  
Keyword(3) periodically poled lithium niobate  
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1st Author's Name Kiichiro Kuwahara  
1st Author's Affiliation Kagawa University (Kagawa Univ.)
2nd Author's Name Ayumu Kariya  
2nd Author's Affiliation Kagawa University (Kagawa Univ.)
3rd Author's Name Rikizo Ikuta  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Takahiro Kodama  
4th Author's Affiliation Kagawa University (Kagawa Univ.)
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Speaker Author-1 
Date Time 2025-05-22 15:05:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2025-1 
Volume (vol) vol.125 
Number (no) no.34 
Page pp.1-6 
#Pages 6 
Date of Issue 2025-05-15 (OFT) 

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