Presentation 2016-05-20
Theoretical Investigation of Laser-Diode-Pumped High Efficiency CW Ti:Sapphire Laser
Motoki Morioka, Keisuke Hayashi, Shinichi Inayoshi, Hiroki Kadoya, Toru Sato, Sakae Kawato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The efficiency of a continuous wave, laser diode pumped Ti:Sapphire 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 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 0.84 W was obtained at an incident pump power of 3.5 W. The corresponding optical to optical conversion efficiency and slope efficiency were 24% and 34.5%, respectively.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ti:Sapphire / laser diode pump / high efficiency / cavity
Paper # LQE2016-17
Date of Issue 2016-05-12 (LQE)

Conference Information
Committee LQE / LSJ
Conference Date 2016/5/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Susumu Noda(Kyoto Univ.)
Vice Chair Tsuyoshi Yamamoto(Fujitsu Labs.)
Secretary Tsuyoshi Yamamoto(NTT) / (Tohoku Univ.)
Assistant

Paper Information
Registration To Technical Committee on Lasers and Quantum Electronics / The Laser Society of Japan
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Theoretical Investigation of Laser-Diode-Pumped High Efficiency CW Ti:Sapphire Laser
Sub Title (in English)
Keyword(1) Ti:Sapphire
Keyword(2) laser diode pump
Keyword(3) high efficiency
Keyword(4) cavity
1st Author's Name Motoki Morioka
1st Author's Affiliation University of Fukui(Univ. of Fukui)
2nd Author's Name Keisuke Hayashi
2nd Author's Affiliation University of Fukui(Univ. of Fukui)
3rd Author's Name Shinichi Inayoshi
3rd Author's Affiliation University of Fukui(Univ. of Fukui)
4th Author's Name Hiroki Kadoya
4th Author's Affiliation University of Fukui(Univ. of Fukui)
5th Author's Name Toru Sato
5th Author's Affiliation University of Fukui(Univ. of Fukui)
6th Author's Name Sakae Kawato
6th Author's Affiliation University of Fukui(Univ. of Fukui)
Date 2016-05-20
Paper # LQE2016-17
Volume (vol) vol.116
Number (no) LQE-52
Page pp.pp.77-80(LQE),
#Pages 4
Date of Issue 2016-05-12 (LQE)