Multiwatt continuous wave Nd:KGW laser with hot-band diode pumping

被引：57
|
作者：
Talukder, Rubel Chandra [1 ]
Halim, Md. Zubaer Eibna [1 ]
Waritanant, Tanant [1 ]
Major, Arkady [1 ]
机构：
[1] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 5V6, Canada
来源：
OPTICS LETTERS | 2016年 / 41卷 / 16期
基金：
加拿大自然科学与工程研究理事会;
关键词：
PUMPED ND-KGD(WO4)(2) LASER; NDYVO4; LASER; ND-KGW; 914; NM; NDKGD(WO4)(2) LASER; CRYSTAL; POWER;
D O I：
10.1364/OL.41.003810
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have demonstrated what we believe is the first continuous wave neodymium-doped potassium gadolinium tungstate crystal (Nd: KGW) laser with hot-band diode pumping at similar to 910 nm. This pumping wavelength reduced the quantum defect by >46% as compared to conventional similar to 810 nm pumping and resulted in significantly lower thermal lensing. The laser produced 2.9 W of average output power at 1067 nm in a diffraction-limited beam for an absorbed pump power of 8.3 W. The slope efficiency and optical-to-optical efficiency were found to be 43% and 35%, respectively. Significant reduction of quantum defect offered by this pumping wavelength and availability of suitable high-power laser diodes opens up an attractive way to further power and efficiency scaling of Nd: KGW lasers. (C) 2016 Optical Society of America
引用
收藏
页码：3810 / 3812
页数：3
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