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Highly efficient end-side-pumped Nd:YAG solar laser by a heliostat-parabolic mirror system

机译:定日镜-抛物面镜系统的高效端面泵浦Nd:YAG太阳激光器

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We report a large improvement in the collection and slope efficiency of an Nd:YAG solar laser pumped by a heliostat-parabolic mirror system. A conical fused silica lens was used to further concentrate the solar radiation from the focal zone of a 2 m diameter primary concentrator to a Nd: YAG single-crystal rod within a conical pump cavity, which enabled multipass pumping to the active medium. A 56 W cw laser power was measured, corresponding to 21.1 W/m(2) record-high solar laser collection efficiency with the heliostat-parabolic mirror system. 4.9% slope efficiency was calculated, corresponding to 175% enhancement over our previous result. (C) 2015 Optical Society of America
机译:我们报道了定日镜-抛物面反射镜系统泵浦的Nd:YAG太阳激光器的收集和斜率效率有了很大改善。使用锥形熔融石英透镜进一步将太阳辐射从直径为2 m的一次聚光器的聚焦区集中到锥形泵腔内的Nd:YAG单晶棒,从而可以多通道泵送至活性介质。测量了56 W cw激光功率,相当于使用定日镜-抛物面反射镜系统记录的21.1 W / m(2)创纪录的高太阳激光收集效率。计算得出的斜率效率为4.9%,比我们之前的结果提高了175%。 (C)2015年美国眼镜学会

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