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Paper Abstract and Keywords
Presentation 2013-11-21 16:15
A Study Regarding the Time-delay Calibration for the Interruption-free Optical Access Line Transfer System
Keiji Okamoto, Masaaki Inoue, Kazunori Katayama, Tetsuya Manabe (NTT) OFT2013-41
Abstract (in Japanese) (See Japanese page) 
(in English) In order to realize an efficient operation for rearranging optical access lines, we have studied optical line switching technique without service interruption. This optical line switching method is achieved by means of optical lines duplication using the developed system that consists of the measurement part to evaluate the propagation time difference between the two optical paths and the delay alignment part to adjust it. To cut off the interference noise by optical lines duplication, the wavelength interval is set for the signals through two optical paths, while that makes a difference in the group velocity between the signals, resulting in the group delay difference. Here we show the impact of the group delay difference between two optical paths on the optical lines duplication, and discuss its calibration.
Keyword (in Japanese) (See Japanese page) 
(in English) Interruption-free Optical Line Switching / Electric Delay Adjustment / Group Delay Difference / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 306, OFT2013-41, pp. 25-30, Nov. 2013.
Paper # OFT2013-41 
Date of Issue 2013-11-14 (OFT) 
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 OFT2013-41

Conference Information
Committee OCS OFT ITE-BCT IEE-CMN  
Conference Date 2013-11-21 - 2013-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagaoka University of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical access system/next gen. PON/optical monitoring/optical fiber/wireless system/etc. 
Paper Information
Registration To OFT 
Conference Code 2013-11-OCS-OFT-BCT-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study Regarding the Time-delay Calibration for the Interruption-free Optical Access Line Transfer System 
Sub Title (in English)  
Keyword(1) Interruption-free Optical Line Switching  
Keyword(2) Electric Delay Adjustment  
Keyword(3) Group Delay Difference  
Keyword(4)  
Keyword(5)  
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1st Author's Name Keiji Okamoto  
1st Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
2nd Author's Name Masaaki Inoue  
2nd Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
3rd Author's Name Kazunori Katayama  
3rd Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
4th Author's Name Tetsuya Manabe  
4th Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2013-11-21 16:15:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2013-41 
Volume (vol) vol.113 
Number (no) no.306 
Page pp.25-30 
#Pages 6 
Date of Issue 2013-11-14 (OFT) 

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