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Paper Abstract and Keywords
Presentation 2014-01-24 13:35
Accurate fabrication of low-loss SFBGs assisted by multivariate structure identification
Tomoya Hagihara, Masanori Hanawa (Univ. of Yamanashi) PN2013-75 OPE2013-189 LQE2013-175 EST2013-124 MWP2013-95
Abstract (in Japanese) (See Japanese page) 
(in English) Phase differences between two FBGs of low-loss sampled fiber Bragg gratings (SFBGs) are identified and the phase differences are calibrated by the phase trimming method. The phase differences, which are determined by optical lengths between two adjacent FBGs, are the most important parameter in SFBG fabrication. The frequency of estimation error of phase difference within 0.05π for low-loss 4-chip SFBGs has been improved from 56 % to 78 % by using the downhill simplex method (DHS) instead of LMS algorithm. The calculation amount was also reduced 40 times. The average of maximum phase error for fabricated low-loss 4-chip SFBGs was 0.14π by using the DHS. In addition, fabrication result of low-loss 8-chip SFBG is shown.
Keyword (in Japanese) (See Japanese page) 
(in English) sampled FBG / multivariate structure identification / phase difference / phase trimming / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 394, OPE2013-189, pp. 267-272, Jan. 2014.
Paper # OPE2013-189 
Date of Issue 2014-01-16 (PN, OPE, LQE, EST, MWP) 
ISSN Print edition: ISSN 0913-5685    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 PN2013-75 OPE2013-189 LQE2013-175 EST2013-124 MWP2013-95

Conference Information
Committee MWP EMT PN LQE OPE EST IEE-EMT  
Conference Date 2014-01-23 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OPE 
Conference Code 2014-01-MWP-EMT-PN-LQE-OPE-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Accurate fabrication of low-loss SFBGs assisted by multivariate structure identification 
Sub Title (in English)  
Keyword(1) sampled FBG  
Keyword(2) multivariate structure identification  
Keyword(3) phase difference  
Keyword(4) phase trimming  
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1st Author's Name Tomoya Hagihara  
1st Author's Affiliation University of Yamanashi (Univ. of Yamanashi)
2nd Author's Name Masanori Hanawa  
2nd Author's Affiliation University of Yamanashi (Univ. of Yamanashi)
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Speaker Author-1 
Date Time 2014-01-24 13:35:00 
Presentation Time 25 minutes 
Registration for OPE 
Paper # PN2013-75, OPE2013-189, LQE2013-175, EST2013-124, MWP2013-95 
Volume (vol) vol.113 
Number (no) no.393(PN), no.394(OPE), no.395(LQE), no.396(EST), no.397(MWP) 
Page pp.267-272 
#Pages 6 
Date of Issue 2014-01-16 (PN, OPE, LQE, EST, MWP) 

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