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Zigzag Multirod Laser Beam Merging Approach for Brighter TEM 00 -Mode Solar Laser Emission from a Megawatt Solar Furnace

Author

Listed:
  • Hugo Costa

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Joana Almeida

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Dawei Liang

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Miguel Catela

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Dário Garcia

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Bruno D. Tibúrcio

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

  • Cláudia R. Vistas

    (Centro de Física e Investigação Tecnológica (CEFITEC), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal)

Abstract

An alternative multirod solar laser end-side-pumping concept, based on the megawatt solar furnace in France, is proposed to significantly improve the TEM 00 -mode solar laser output power level and its beam brightness through a novel zigzag beam merging technique. A solar flux homogenizer was used to deliver nearly the same pump power to multiple core-doped Nd:YAG laser rods within a water-cooled pump cavity through a fused silica window. Compared to the previous multibeam solar laser station concepts for the same solar furnace, the present approach can allow the production of high-power TEM 00 -mode solar laser beams with high beam brightness. An average of 1.06 W TEM 00 -mode laser power was numerically extracted from each of 1657 rods, resulting in a total of 1.8 kW. More importantly, by mounting 399 rods at a 30° angle of inclination and employing the beam merging technique, a maximum of 5.2 kW total TEM 00 -mode laser power was numerically extracted from 37 laser beams, averaging 141 W from each merged beam. The highest solar laser beam brightness figure of merit achieved was 148 W, corresponding to an improvement of 23 times in relation to the previous experimental record.

Suggested Citation

  • Hugo Costa & Joana Almeida & Dawei Liang & Miguel Catela & Dário Garcia & Bruno D. Tibúrcio & Cláudia R. Vistas, 2021. "Zigzag Multirod Laser Beam Merging Approach for Brighter TEM 00 -Mode Solar Laser Emission from a Megawatt Solar Furnace," Energies, MDPI, vol. 14(17), pages 1-16, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:17:p:5437-:d:626944
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    Cited by:

    1. Hugo Costa & Dawei Liang & Joana Almeida & Miguel Catela & Dário Garcia & Bruno D. Tibúrcio & Cláudia R. Vistas, 2022. "Seven-Rod Pumping Concept for Highly Stable Solar Laser Emission," Energies, MDPI, vol. 15(23), pages 1-16, December.

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