Solar-Pumped TEM00 Mode Nd:YAG laser

被引：69

作者：

Liang, Dawei ^{[1
]}

Almeida, Joana ^{[1
]}

机构：

[1] Univ Nova Lisboa, FCT, Dept Fis, CEFITEC, P-2829516 Campus De Caparica, Portugal

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 21期

关键词：

ND-YAG LASER; ND/YAG LASER; BRIGHTNESS; DESIGN;

D O I：

10.1364/OE.21.025107

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Here we show a significant advance in solar-pumped laser beam brightness by utilizing a 1.0 m diameter Fresnel lens and a 3 mm diameter Nd:YAG single-crystal rod. The incoming solar radiation is firstly focused by the Fresnel lens on a solar tracker. A large aspheric lens and a 2D-CPC concentrator are then combined to further compress the concentrated solar radiation along the thin laser rod within a V-shaped pumping cavity. 2.3 W cw TEM00 (M-2 <= 1.1) solar laser power is finally produced, attaining 1.9 W laser beam brightness figure of merit, which is 6.6 times higher than the previous record. For multimode operation, 8.1 W cw laser power is produced, corresponding to 143% enhancement in collection efficiency. (C) 2013 Optical Society of America

引用

页码：25107 / 25112

页数：6

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