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High-efficiency solar-pumped TEM 00 -mode Nd:YAG laser

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 01 Feb 2016 France Publisher:Elsevier BVJournal:Solar Energy Materials and Solar Cells, volume 145, pages 397-402 (issn: 0927-0248,

Authors: Dawei Liang; Joana Almeida; Cláudia R. Vistas; Mariana Oliveira; Filipe Gonçalves; Emmanuel Guillot;

doi: 10.1016/j.solmat.2015.11.001

High-efficiency solar-pumped TEM 00 -mode Nd:YAG laser

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Abstract

Abstract Here we report a significant progress in solar-pumped laser slope efficiency and collection efficiency by pumping a 4.0 mm diameter grooved Nd:YAG single-crystal rod with a heliostat–parabolic mirror solar energy concentration system. The incoming solar radiation is firstly collected and focused by the system. An ellipsoid-shaped fused silica concentrator is then used to further compress the concentrated solar radiation into the grooved rod within a 2V-shaped pumping cavity. 4.5 W continuous-wave TEM00-mode (M2≤1.1) 1064 nm solar laser power is finally measured, attaining 2.36% laser slope efficiency, which is 3.37 and 2.91 times higher than previous records by Fresnel lens and parabolic mirror respectively. Record-high TEM00-mode solar laser collection efficiency of 4.0 W/m2 is also achieved.

Country

France

Related Organizations

French Institute for Research in Computer Science and Automation
France
Universidade Nova de Lisboa
Portugal
Centre national de la recherche scientifique
France
Universidade Nova de Lisboa
Portugal
French National Centre for Scientific Research
France

Keywords

Neodymium, Resonator, Parabolic mirror, Single-mode laser, [SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [ SPI ] Engineering Sciences [physics], [ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photonic, Solar-pumped laser, Solar heliostat

1 Research products, page 1 of 1

Solar-pumped Nd:YAG laser with 31.5 W/m2 multimode and 7.9 W/m2 TEM00-mode collection efficiencies
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