PSE Community.org

LAPSE:2023.12799

40 W Continuous Wave Ce:Nd:YAG Solar Laser through a Fused Silica Light Guide

Joana Almeida, Dawei Liang, Dário Garcia, Bruno D. Tibúrcio, Hugo Costa, Miguel Catela, Emmanuel Guillot, Cláudia R. Vistas

February 28, 2023

Abstract
The solar laser power scaling potential of a side-pumped Ce:Nd:YAG solar laser through a rectangular fused silica light guide was investigated by using a 2 m diameter parabolic concentrator. The laser head was formed by the light guide and a V-shaped pump cavity to efficiently couple and redistribute the concentrated solar radiation from the parabolic mirror to a 4 mm diameter, 35 mm length Ce(0.1 at.%):Nd(1.1 at.%):YAG laser rod. The rectangular light guide ensured a homogeneous distribution of the solar radiation along the laser rod, allowing it to withstand highly concentrated solar energy. With the full collection area of the parabolic mirror, the maximum continuous wave (cw) solar laser power of 40 W was measured. This, to the best of our knowledge, corresponds to the highest cw laser power obtained from a Ce:Nd:YAG medium pumped by solar radiation, representing an enhancement of two times over that of the previous side-pumped Ce:Nd:YAG solar laser and 1.19 times over the highest Cr:Nd:YAG solar laser power with a rectangular light-guide. This research proved that, with an appropriate pumping configuration, the Ce:Nd:YAG medium is very promising for scaling solar laser output power to a higher level.

Record ID

LAPSE:2023.12799

Keywords

Ce:Nd:YAG, homogenizer, light-guide, parabolic mirror, side-pumped, solar laser

Subject

Energy Systems

Suggested Citation

Almeida J, Liang D, Garcia D, Tibúrcio BD, Costa H, Catela M, Guillot E, Vistas CR. 40 W Continuous Wave Ce:Nd:YAG Solar Laser through a Fused Silica Light Guide. (2023). LAPSE:2023.12799

Author Affiliations

Almeida J: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Liang D: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal [ORCID]
Garcia D: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Tibúrcio BD: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal [ORCID]
Costa H: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Catela M: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal [ORCID]
Guillot E: PROMES-CNRS, 7 rue du Four Solaire, 66120 Font-Romeu-Odeillo-Via, France [ORCID]
Vistas CR: Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal [ORCID]

Journal Name

Energies

Volume

Issue

First Page

3998

Year

2022

Publication Date

2022-05-29

DOI:

https://doi.org/10.3390/en15113998