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Paper Abstract and Keywords
Presentation 2020-05-15 09:00
EDF ring laser using cascaded-chirped long period fiber grating and its application to temperature sensing
Koken Fukushima, Bui Quoc Hung, Koki Nakaya, Manuel Guterres Soares, Atsushi Wada, Satoshi Tanaka (NDA), Fumihiko Ito (Shimane Univ.) OFT2020-1
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed a novel erbium-doped fiber ring laser (EDFRL) using a cascaded-chirped long period fiber grating (C-CLPG) as a wavelength selection element, in which a variable optical attenuator (VOA) has been inserted into the ring cavity in order to extend the range of a temperature measurement. From the investigation of the oscillation characteristics of the laser, it was found that the wavelength range can be shifted by controlling the VOA so that the measurement range can be extended. In addition, the expansion of the measurement range have been effectively realized by applying numerical processing.
Keyword (in Japanese) (See Japanese page) 
(in English) fiber optic sensor / long period fiber grating / fiber optic ring laser / erbium-doped optical fiber amplifier / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 25, OFT2020-1, pp. 1-4, May 2020.
Paper # OFT2020-1 
Date of Issue 2020-05-08 (OFT) 
ISSN 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 2020-05-15 - 2020-05-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Aomori Tourist Information Center ASPAM 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2020-05-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) EDF ring laser using cascaded-chirped long period fiber grating and its application to temperature sensing 
Sub Title (in English)  
Keyword(1) fiber optic sensor  
Keyword(2) long period fiber grating  
Keyword(3) fiber optic ring laser  
Keyword(4) erbium-doped optical fiber amplifier  
1st Author's Name Koken Fukushima  
1st Author's Affiliation National Defense Academy (NDA)
2nd Author's Name * Bui Quoc Hung  
2nd Author's Affiliation National Defense Academy (NDA)
3rd Author's Name Koki Nakaya  
3rd Author's Affiliation National Defense Academy (NDA)
4th Author's Name * Manuel Guterres Soares  
4th Author's Affiliation National Defense Academy (NDA)
5th Author's Name Atsushi Wada  
5th Author's Affiliation National Defense Academy (NDA)
6th Author's Name Satoshi Tanaka  
6th Author's Affiliation National Defense Academy (NDA)
7th Author's Name Fumihiko Ito  
7th Author's Affiliation Shimane University (Shimane Univ.)
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Speaker Author-1 
Date Time 2020-05-15 09:00:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2020-1 
Volume (vol) vol.120 
Number (no) no.25 
Page pp.1-4 
Date of Issue 2020-05-08 (OFT) 

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