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Paper Abstract and Keywords
Presentation 2019-01-17 13:45
A Technique for Measuring Modal Crosstalk at Splice Position Using 1-um-band Mode-Detection Optical Time Domain Reflectometry
Atsushi Nakamura, Keiji Okamoto, Tomokazu Oda (NTT) OFT2018-62
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed an optical time domain reflectometry (OTDR) that offers high-sensitivity detection of optical loss increases due to macro/micro-bending. The technique injects probe pulses below the cut-off wavelength of conventional single-mode fibers and measures the second-order mode of the backscattered light. In the technique, the crosstalk between the fundamental and second-order modes at a splice position is an important characteristic that closely related to the detection sensitivity of the optical loss increases. In this paper, we propose a novel technique for measuring modal crosstalk at a splice with axial misalignments using OTDR. We also experimentally demonstrate the feasibility of the proposed technique.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical time domain reflectometry / Higher-order modes / Modal crosstalk / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 388, OFT2018-62, pp. 5-8, Jan. 2019.
Paper # OFT2018-62 
Date of Issue 2019-01-10 (OFT) 
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 OFT  
Conference Date 2019-01-16 - 2019-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tanegashima space center, Nishinoomote Civic Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2019-01-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Technique for Measuring Modal Crosstalk at Splice Position Using 1-um-band Mode-Detection Optical Time Domain Reflectometry 
Sub Title (in English)  
Keyword(1) Optical time domain reflectometry  
Keyword(2) Higher-order modes  
Keyword(3) Modal crosstalk  
1st Author's Name Atsushi Nakamura  
1st Author's Affiliation NTT (NTT)
2nd Author's Name Keiji Okamoto  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Tomokazu Oda  
3rd Author's Affiliation NTT (NTT)
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Date Time 2019-01-17 13:45:00 
Presentation Time 25 
Registration for OFT 
Paper # IEICE-OFT2018-62 
Volume (vol) IEICE-118 
Number (no) no.388 
Page pp.5-8 
#Pages IEICE-4 
Date of Issue IEICE-OFT-2019-01-10 

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