PRADO, FELIPE M.FRANCO, TOMAS J.WETTER, NIKLAUS U.2023-04-252023-04-252023PRADO, FELIPE M.; FRANCO, TOMAS J.; WETTER, NIKLAUS U. Sub-nanosecond, 41 mJ pulse energy, passively Q-switched Nd:YLF laser. <b>Optics and Laser Technology</b>, v. 162, p. 1-6, 2023. DOI: <a href="https://dx.doi.org/10.1016/j.optlastec.2023.109257">10.1016/j.optlastec.2023.109257</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33997.0030-3992http://repositorio.ipen.br/handle/123456789/33997A sub-nanosecond, diode-stack side-pumped, passively Q-switched Nd3+:YLF4/Cr4+:YAG Laser is reported in a compact cavity design, generating one pulse of 41 mJ with a pulse width of 894 ps, achieving a peak output power of 46 MW and beam quality M2 of 5.4 × 5.9 (HxV). The number of pulses in the pulse train could be adjusted from one pulse to ten pulses of 111 mJ total output energy and 23.7 % optical efficiency by adjusting the focus distance while maintaining sub-nanosecond pulse duration. This resonator can also be used for high-power simultaneous Q-switched laser emission at 1047 nm and 1053 nm.1-6openAccessq-switchinghigh energy physicscrystalspumpingArtigo de periódico16210.1016/j.optlastec.2023.1092570000-0002-9379-9530https://orcid.org/0000-0002-9379-953078.984.00