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Paper Abstract and Keywords
Presentation 2015-05-21 16:05
Theoretical investigation on Laser-Diode-Pumped High-Efficiency Ytterbium-Doped Yttrium Aluminium Garnet Laser
Hiroaki Okunishi, Kento Kato, Masatoshi Nishio, Keisuke Kyomoto, Takeshi Yoshida, Kyosuke Shimabayashi, Akiyuki Maruko, Motoki Morioka, Shinichi Inayoshi, Sayumi Yamagata, Daichi Mizuno, Sakae Kawato (Univ. of Fukui) LQE2015-7
Abstract (in Japanese) (See Japanese page) 
(in English) The efficiency of a continuous wave, laser diode pumped Yb:YAG laser were investigated theoretically. The efficiency will be increased by high gain operation due to high intensity pumping, however, the influence on the thermo-optic effect due to high intensity pumping should be investigated. The analysis included the quasi-four level laser theory and a cavity design with thermal focusing due to high intensity pumping. By using the thermal focusing and pump beam aberrations, the maximum output power of 1.42 W was obtained at an incident pump power of 1.77 W. The corresponding optical to optical conversion efficiency and slope efficiency were 80.4% and 84.5%, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) Yb:YAG / laser diode pumped / high efficiency / high intensity pumping / high gain / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 46, LQE2015-7, pp. 33-36, May 2015.
Paper # LQE2015-7 
Date of Issue 2015-05-14 (LQE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 LQE LSJ  
Conference Date 2015-05-21 - 2015-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2015-05-LQE-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical investigation on Laser-Diode-Pumped High-Efficiency Ytterbium-Doped Yttrium Aluminium Garnet Laser 
Sub Title (in English)  
Keyword(1) Yb:YAG  
Keyword(2) laser diode pumped  
Keyword(3) high efficiency  
Keyword(4) high intensity pumping  
Keyword(5) high gain  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroaki Okunishi  
1st Author's Affiliation University of Fukui (Univ. of Fukui)
2nd Author's Name Kento Kato  
2nd Author's Affiliation University of Fukui (Univ. of Fukui)
3rd Author's Name Masatoshi Nishio  
3rd Author's Affiliation University of Fukui (Univ. of Fukui)
4th Author's Name Keisuke Kyomoto  
4th Author's Affiliation University of Fukui (Univ. of Fukui)
5th Author's Name Takeshi Yoshida  
5th Author's Affiliation University of Fukui (Univ. of Fukui)
6th Author's Name Kyosuke Shimabayashi  
6th Author's Affiliation University of Fukui (Univ. of Fukui)
7th Author's Name Akiyuki Maruko  
7th Author's Affiliation University of Fukui (Univ. of Fukui)
8th Author's Name Motoki Morioka  
8th Author's Affiliation University of Fukui (Univ. of Fukui)
9th Author's Name Shinichi Inayoshi  
9th Author's Affiliation University of Fukui (Univ. of Fukui)
10th Author's Name Sayumi Yamagata  
10th Author's Affiliation University of Fukui (Univ. of Fukui)
11th Author's Name Daichi Mizuno  
11th Author's Affiliation University of Fukui (Univ. of Fukui)
12th Author's Name Sakae Kawato  
12th Author's Affiliation University of Fukui (Univ. of Fukui)
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Speaker Author-1 
Date Time 2015-05-21 16:05:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # LQE2015-7 
Volume (vol) vol.115 
Number (no) no.46 
Page pp.33-36 
#Pages
Date of Issue 2015-05-14 (LQE) 


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