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Paper Abstract and Keywords
Presentation 2024-07-11 14:55
Design and fabrication of quantum well optical modulators with circular patch antennas for radio over fiber systems
Ryotaro Nakazawa, Gaku Sekiguchi (Yokohama National Univ.), Yui Otagaki, Hiroshi Murata (Mie Univ.), Atsushi Matsumoto (NICT), Taro Arakawa (Yokohama National Univ.) EMT2024-15 MW2024-39 OPE2024-18 EST2024-16 MWPTHz2024-22
Abstract (in Japanese) (See Japanese page) 
(in English) Radio over Fiver (RoF) systems have attracted attention due to the increasing demand for high-speed and large-capacity communications. An optical modulator that modulates light with received radio waves is indispensable for RoF, and we describe the design and fabrication of an antenna-integrated five-layer asymmetric quantum well (FACQW) optical modulator applicable to RoF. This optical modulator takes advantage of the high electrorefractive index change due to the quantum confined stark effect(QCSE). We designed a circular patch antenna, which is a new antenna structure, and the measurement results show that about 55.0 dB CSR (3.56 mrad of phase modulation) was obtained when irradiated with radio waves of P=4.4 W/m2 and f=60 GHz, which is the first operational demonstration of a quantum well optical modulator with a circular patch antenna .
Keyword (in Japanese) (See Japanese page) 
(in English) optical modulator / antenna / radio over fiber / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 97, OPE2024-18, pp. 32-37, July 2024.
Paper # OPE2024-18 
Date of Issue 2024-07-04 (EMT, MW, OPE, EST, MWPTHz) 
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 EMT2024-15 MW2024-39 OPE2024-18 EST2024-16 MWPTHz2024-22

Conference Information
Committee MW EMT OPE MWPTHz EST IEE-EMT  
Conference Date 2024-07-11 - 2024-07-12 
Place (in Japanese) (See Japanese page) 
Place (in English) otaru-shimin-kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Workshop on Optical and Microwave technologies 
Paper Information
Registration To OPE 
Conference Code 2024-07-MW-EMT-OPE-MWPTHz-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design and fabrication of quantum well optical modulators with circular patch antennas for radio over fiber systems 
Sub Title (in English)  
Keyword(1) optical modulator  
Keyword(2) antenna  
Keyword(3) radio over fiber  
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1st Author's Name Ryotaro Nakazawa  
1st Author's Affiliation Yokohama National University (Yokohama National Univ.)
2nd Author's Name Gaku Sekiguchi  
2nd Author's Affiliation Yokohama National University (Yokohama National Univ.)
3rd Author's Name Yui Otagaki  
3rd Author's Affiliation Mie University (Mie Univ.)
4th Author's Name Hiroshi Murata  
4th Author's Affiliation Mie University (Mie Univ.)
5th Author's Name Atsushi Matsumoto  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Taro Arakawa  
6th Author's Affiliation Yokohama National University (Yokohama National Univ.)
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Speaker Author-1 
Date Time 2024-07-11 14:55:00 
Presentation Time 25 minutes 
Registration for OPE 
Paper # EMT2024-15, MW2024-39, OPE2024-18, EST2024-16, MWPTHz2024-22 
Volume (vol) vol.124 
Number (no) no.95(EMT), no.96(MW), no.97(OPE), no.98(EST), no.99(MWPTHz) 
Page pp.32-37 
#Pages 6 
Date of Issue 2024-07-04 (EMT, MW, OPE, EST, MWPTHz) 

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