High-efficiency solar-pumped TEM00-mode Nd:YAG laser

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 TEM₀₀-mode Nd:YAG laser

Dawei Liang, Joana Almeida, Cláudia R. Vistas, Mariana Oliveira, Filipe Gonçalves, Emmanuel Guillot

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

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≥r1.1)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 4.0W/m2 is also achieved.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	145
DOIs	https://doi.org/10.1016/j.solmat.2015.11.001
Publication status	Published - 1 Feb 2016

Keywords

Collection efficiency
Parabolic mirror
Resonator
Single-mode laser
Slope efficiency
Solar-pumped laser

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.solmat.2015.11.001

Cite this

@article{11280e391b104ce49657c93ca8aa8048,

title = "High-efficiency solar-pumped TEM00-mode Nd:YAG laser",

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≥r1.1)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 4.0W/m2 is also achieved.",

keywords = "Collection efficiency, Parabolic mirror, Resonator, Single-mode laser, Slope efficiency, Solar-pumped laser",

author = "Dawei Liang and Joana Almeida and Vistas, {Cl{\'a}udia R.} and Mariana Oliveira and Filipe Gon{\c c}alves and Emmanuel Guillot",

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doi = "10.1016/j.solmat.2015.11.001",

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AU - Liang, Dawei

AU - Almeida, Joana

AU - Vistas, Cláudia R.

AU - Oliveira, Mariana

AU - Gonçalves, Filipe

AU - Guillot, Emmanuel

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PY - 2016/2/1

Y1 - 2016/2/1

N2 - 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≥r1.1)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 4.0W/m2 is also achieved.

AB - 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≥r1.1)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 4.0W/m2 is also achieved.

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