PRADO, FELIPE M.FRANCO, TOMAS J.VIEIRA, TARCIO de A.WETTER, NIKLAUS U.2023-07-212023-07-212023PRADO, FELIPE M.; FRANCO, TOMAS J.; VIEIRA, TARCIO de A.; WETTER, NIKLAUS U. High-power Nd:YLF four-level lasers with 68% slope efficiency. <b>Applied Optics</b>, v. 62, n. 8, p. C49 - C52, 2023. DOI: <a href="https://dx.doi.org/10.1364/AO.476541">10.1364/AO.476541</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/34160.1559-128Xhttp://repositorio.ipen.br/handle/123456789/34160Three 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.C49 - C52openAccessneodymium lasersresonatorsoptical radarArtigo de periódico86210.1364/AO.4765410000-0002-9379-9530https://orcid.org/0000-0002-9379-953039.157.67