TARCIO DE ALMEIDA VIEIRA
6 resultados
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Artigo IPEN-doc 30102 Results in highly-efficient side-pumped Nd:YLF lasers2023 - PRADO, FELIPE M.; FRANCO, TOMAS J.; VIEIRA, TARCIO de A.; DEANA, ALESSANDRO M.; WETTER, NIKLAUS U.Here we present resents advancements in Nd:YLF lasers, achieving record-breaking efficiency and output energies. In Q-switched operation, we obtained output energy of 41.2 mJ with peak power of 46 MW. Furthermore, we achieved a near quantum-defect slope efficiency of 78.2%, the highest reported for Nd:YLF lasers. We also present efficient 1314 nm laser emission.Artigo IPEN-doc 30049 Modern diode pumped solid state lasers2023 - WETTER, NIKLAUS U.; PRADO, FELIPE M.; VIEIRA, TARCIO de A.; DEANA, ALESSANDRO M.A brief review of the advances in diode-pumped, Neodymium-doped, high-efficiency lasers is presented, showing how different configurations were able to achieve extremely elevated slope efficiencies, close to the quantum limit, while demonstrating excellent beam quality.Artigo IPEN-doc 29783 High-power Nd:YLF four-level lasers with 68% slope efficiency2023 - PRADO, FELIPE M.; FRANCO, TOMAS J.; VIEIRA, TARCIO de A.; WETTER, NIKLAUS U.Three laser resonators are demonstrated emitting at 1053 nm and pumped at 797 nm by volume Bragg gratingequipped diodes, achieving the highest reported efficiencies for Nd:YLF in a four-level system, to the best of our knowledge. A peak output power of 880 W is achieved by pumping the crystal with a diode stack of 1.4 kW of peak pump power.Artigo IPEN-doc 29357 68% slope efficiency Nd:YLF laser with 91 W of peak power2022 - PRADO, FELIPE M.; VIEIRA, TARCIO de A.; WETTER, NIKLAUS U.We demonstrate two highly efficient Nd:YLiF4 lasers, achieving the highest efficiencies for Nd:YLF side-pumped at 800 nm.Artigo IPEN-doc 28683 Nd:YLF laser at 1053 nm diode side pumped at 863 nm with a near quantum-defect slope efficiency2022 - VIEIRA, TARCIO de A.; PRADO, FELIPE M.; WETTER, NIKLAUS U.Laser emission at the 1053 nm transition of Nd:YLF4 is demonstrated using diode-side-pumping at 863 nm directly into the emitting level. The laser configuration uses one total internal reflection at the pump face and provides the highest slope efficiency reported for the Nd:YLF4 medium, close to the quantum limit. In quasi-continuous mode, the laser operates with diffraction-limited beam quality and 78.2% slope efficiency with 14.4 W of output power. In continuous mode, 75.7% slope efficiency in both single-mode and multimode operation is achieved, with 13.5 W output power.Artigo IPEN-doc 28632 Near quantum limited slope efficiency Nd:YLF4 laser2021 - VIEIRA, TARCIO de A.; PRADO, FELIPE M.; WETTER, NIKLAUS U.We report on a Nd:YLF4 laser diode-side-pumped at 863 nm, resulting in 75% slope efficiency and 13.8 W of CW output power.