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Paper Abstract and Keywords
Presentation 2018-10-19 10:55
Mode Crosstalk Analysis for Active-MMI Mode-Selective Light Source
Tomotaka Mori, Bingzhou Hong, Haisong Jiang, Kiichi Hamamoto (Kyushu Univ.) OCS2018-43 OPE2018-79 LQE2018-68
Abstract (in Japanese) (See Japanese page) 
(in English) Due to recent advancing of AI and big data, interconnection of supercomputer may exceed transmission capacity over Tbps in the near future. In order to achieve transmission capacity over Tbps, optical interconnection techniques are widely researched. Technological history tells us that, not only supercomputer, small IT devices will require such techniques following supercomputer after a few decades. To realize optical interconnection in small IT devices with over Tbps, mode selective light source is one candidate to be integrated for the optical interconnection. We have demonstrated active-MMI mode selective light source. It features; 1) a few space modes selectively, 2) high frequency response (more than 100 GHz is expected at least). Therefore, high frequency response with the combination of mode multiplexing may enables transmission capacity over 100 Gbps. So far, we have demonstrated 0th and 1st mode selective oscillation with actually implemented devices. We have confirmed the fundamental performance of it by monitoring near field patterns, however, mode crosstalk in detail has not been investigated nor evaluated.
In this paper, we propose mode crosstalk analysis method by analyzing far field patterns. Output far field pattern of mode selective light source is separated to 0th and 1st mode mathematically. As a result, evaluation results of -10.3 dB for 0th mode selected, and -13.0 dB for 1st mode selected conditions, respectively, were achieved for the first time.
Keyword (in Japanese) (See Japanese page) 
(in English) Active MMI-LD / Mode-Selective Light Source / Mode Crosstalk / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 253, LQE2018-68, pp. 81-86, Oct. 2018.
Paper # LQE2018-68 
Date of Issue 2018-10-11 (OCS, OPE, LQE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 OPE LQE OCS  
Conference Date 2018-10-18 - 2018-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To LQE 
Conference Code 2018-10-OPE-LQE-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mode Crosstalk Analysis for Active-MMI Mode-Selective Light Source 
Sub Title (in English)  
Keyword(1) Active MMI-LD  
Keyword(2) Mode-Selective Light Source  
Keyword(3) Mode Crosstalk  
1st Author's Name Tomotaka Mori  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Bingzhou Hong  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Haisong Jiang  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Kiichi Hamamoto  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
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Date Time 2018-10-19 10:55:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-OCS2018-43,IEICE-OPE2018-79,IEICE-LQE2018-68 
Volume (vol) IEICE-118 
Number (no) no.251(OCS), no.252(OPE), no.253(LQE) 
Page pp.81-86 
#Pages IEICE-6 
Date of Issue IEICE-OCS-2018-10-11,IEICE-OPE-2018-10-11,IEICE-LQE-2018-10-11 

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