Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses
Low-cost, lightweight, and easily available Fresnel lenses are a more alluring choice for solar laser power production, when compared to the costly and complex heliostat-parabolic mirror systems. Therefore, a seven-rod solar laser head was designed and numerically studied to enhance the efficiency i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/6/620 |
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| author | Hugo Costa Dawei Liang Joana Almeida Miguel Catela Dário Garcia Bruno D. Tibúrcio Cláudia R. Vistas |
| author_facet | Hugo Costa Dawei Liang Joana Almeida Miguel Catela Dário Garcia Bruno D. Tibúrcio Cláudia R. Vistas |
| author_sort | Hugo Costa |
| collection | DOAJ |
| description | Low-cost, lightweight, and easily available Fresnel lenses are a more alluring choice for solar laser power production, when compared to the costly and complex heliostat-parabolic mirror systems. Therefore, a seven-rod solar laser head was designed and numerically studied to enhance the efficiency in TEM<sub>00</sub>-mode laser power production, employing six Fresnel lenses with 10 m<sup>2</sup> total collection area for collection and concentration of sunlight. Six folding mirrors redirected the solar rays towards the laser head, composed of six fused silica aspheric lenses and rectangular compound parabolic concentrators paired together for further concentration, and a cylindrical cavity, in which seven Nd:YAG rods were mounted and side-pumped. With conventional rods, total TEM<sub>00</sub>-mode laser power reached 139.89 W, which is equivalent to 13.99 W/m<sup>2</sup> collection efficiency and 1.47% solar-to-TEM<sub>00</sub>-mode laser power conversion efficiency. More importantly, by implementing rods with grooved sidewalls, the total laser power was increased to 153.29 W, corresponding to 15.33 W/m<sup>2</sup> collection and 1.61% conversion efficiencies. The side-pumping configuration and the good thermal performance may ensure that the seven-grooved-rod system has better scalability than other previously proposed schemes. |
| first_indexed | 2024-03-11T02:02:41Z |
| format | Article |
| id | doaj.art-eec9f2788d494c3596aca1c2082f3de9 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T02:02:41Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-eec9f2788d494c3596aca1c2082f3de92023-11-18T12:07:23ZengMDPI AGPhotonics2304-67322023-05-0110662010.3390/photonics10060620Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel LensesHugo Costa0Dawei Liang1Joana Almeida2Miguel Catela3Dário Garcia4Bruno D. Tibúrcio5Cláudia R. Vistas6Centre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalCentre of Physics and Technological Research, Physics Department, NOVA School of Science and Technology, 2829-516 Caparica, PortugalLow-cost, lightweight, and easily available Fresnel lenses are a more alluring choice for solar laser power production, when compared to the costly and complex heliostat-parabolic mirror systems. Therefore, a seven-rod solar laser head was designed and numerically studied to enhance the efficiency in TEM<sub>00</sub>-mode laser power production, employing six Fresnel lenses with 10 m<sup>2</sup> total collection area for collection and concentration of sunlight. Six folding mirrors redirected the solar rays towards the laser head, composed of six fused silica aspheric lenses and rectangular compound parabolic concentrators paired together for further concentration, and a cylindrical cavity, in which seven Nd:YAG rods were mounted and side-pumped. With conventional rods, total TEM<sub>00</sub>-mode laser power reached 139.89 W, which is equivalent to 13.99 W/m<sup>2</sup> collection efficiency and 1.47% solar-to-TEM<sub>00</sub>-mode laser power conversion efficiency. More importantly, by implementing rods with grooved sidewalls, the total laser power was increased to 153.29 W, corresponding to 15.33 W/m<sup>2</sup> collection and 1.61% conversion efficiencies. The side-pumping configuration and the good thermal performance may ensure that the seven-grooved-rod system has better scalability than other previously proposed schemes.https://www.mdpi.com/2304-6732/10/6/620Fresnel lensgrooved rodNd:YAGsolar laserTEM<sub>00</sub>-mode |
| spellingShingle | Hugo Costa Dawei Liang Joana Almeida Miguel Catela Dário Garcia Bruno D. Tibúrcio Cláudia R. Vistas Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses Photonics Fresnel lens grooved rod Nd:YAG solar laser TEM<sub>00</sub>-mode |
| title | Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses |
| title_full | Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses |
| title_fullStr | Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses |
| title_full_unstemmed | Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses |
| title_short | Seven-Grooved-Rod, Side-Pumping Concept for Highly Efficient TEM<sub>00</sub>-Mode Solar Laser Emission through Fresnel Lenses |
| title_sort | seven grooved rod side pumping concept for highly efficient tem sub 00 sub mode solar laser emission through fresnel lenses |
| topic | Fresnel lens grooved rod Nd:YAG solar laser TEM<sub>00</sub>-mode |
| url | https://www.mdpi.com/2304-6732/10/6/620 |
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