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Paper Abstract and Keywords
Presentation 2019-10-17 09:35
Efficient Optical Alignment Technique for Multi-Lane TOSAs with Integrated Multiplexing with Free Space Optics
Tadashi Murao, Keita Mochizuki, Kazutaka Ikeda, Mizuki Shirao, Kiyotomo Hasegawa, Hiroshi Aruga (Mitsubishi Electric) OCS2019-27 OPE2019-65 LQE2019-43
Abstract (in Japanese) (See Japanese page) 
(in English) An efficient and low-cost optical alignment technique is for the first time established for compact multi-lane transmitter optical sub-assemblies (TOSAs) with an integrated multiplexer based on free space optics (FSO). An FSO system for the 100 GbE TOSA is fabricated in a compact package to confirm the validity of the technique. It is demonstrated by experiment that the optimum optical alignment condition can successfully be figured out by this technique without any expensive equipment, which has been a significant issue for TOSAs with integrated FSO systems, confirming the validity of the technique. Further, Monte Carlo simulations show that the optical output power distribution across the lanes is compatible with the 100 GbE LR4 specification, indicating the suitability of the proposed low-cost alignment technique. It is also shown that the acceptable long-term power variation required for reliability is predicted owing to the relaxation of the positional tolerance of the collimator lenses, which is obtained by the proposed technique.
Keyword (in Japanese) (See Japanese page) 
(in English) Free space optics (FSO) / hybrid integration / laser diode (LD) / 100 and 400 Gbps Ethernet (GbE) / planar lightwave circuit (PLC) / transmitter optical sub-assembly (TOSA) / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 231, LQE2019-43, pp. 1-6, Oct. 2019.
Paper # LQE2019-43 
Date of Issue 2019-10-10 (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)
Download PDF OCS2019-27 OPE2019-65 LQE2019-43

Conference Information
Committee OCS LQE OPE  
Conference Date 2019-10-17 - 2019-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2019-10-OCS-LQE-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Efficient Optical Alignment Technique for Multi-Lane TOSAs with Integrated Multiplexing with Free Space Optics 
Sub Title (in English)  
Keyword(1) Free space optics (FSO)  
Keyword(2) hybrid integration  
Keyword(3) laser diode (LD)  
Keyword(4) 100 and 400 Gbps Ethernet (GbE)  
Keyword(5) planar lightwave circuit (PLC)  
Keyword(6) transmitter optical sub-assembly (TOSA)  
1st Author's Name Tadashi Murao  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Keita Mochizuki  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Kazutaka Ikeda  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Mizuki Shirao  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
5th Author's Name Kiyotomo Hasegawa  
5th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
6th Author's Name Hiroshi Aruga  
6th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Date Time 2019-10-17 09:35:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-OCS2019-27,IEICE-OPE2019-65,IEICE-LQE2019-43 
Volume (vol) IEICE-119 
Number (no) no.229(OCS), no.230(OPE), no.231(LQE) 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-OCS-2019-10-10,IEICE-OPE-2019-10-10,IEICE-LQE-2019-10-10 

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