Output characteristics of Pr:YAlO3 and Pr:YAG lasers pumped by high-power GaN laser diodes

被引：20

作者：

Fujita, Shogo ^{[1
]}

Tanaka, Hiroki ^{[2
]}

Kannari, Fumihiko ^{[1
]}

机构：

[1] Keio Univ, Dept Elect & Elect Engn, Kohoku Ku, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan

[2] Leibniz Inst Kristallzuchtung IKZ, Max Born Str 2, D-12489 Berlin, Germany

来源：

APPLIED OPTICS | 2020年 / 59卷 / 17期

关键词：

ORANGE; WAVELENGTHS; Y3AL5O12; ND-YVO4; LIYF4; BLUE; YAG;

D O I：

10.1364/AO.394792

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigated whether Pr:YAlO3 and Pr:Y3Al5O12 (YAG) can work as gain media for high-power visible lasers and replace trivalent praseodymium (Pr)-doped fluoride crystals, with particular focus on thermal loading resistivity. Pr:YAlO3 exhibits a high laser gain at 747 nm, and we obtained a maximum output power of 1.2 W and a slope efficiency of 26.7% with high-power GaN laser diode pumping. Excited state absorption and large phonon energy hinder laser oscillation of Pr:YAG at room temperature. We obtained 616 nm laser oscillation of PnYAG at 40 K. Furthermore, we achieved a visible laser with Pr:YAG ceramics for the first time. The maximum output power is similar to 30 mWwith a slope efficiency of similar to 0.7%. (C) 2020 Optical Society of America

引用

页码：5124 / 5130

页数：7

共 23 条

[1] Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAIO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2, and KY(WO4)2 laser crystals in the 80-300 K temperature range -: art. no. 103514 [J].