Abstract
We presented a high pulse repetition frequency (PRF) all-solid-state 1053 nm Nd:YLF laser with laser diode (LD) end-pumped and acousto-optic (AO) Q-switching configuration. When the PRF reached 50 kHz, 1.12 W average power and 541 W peak power was obtained, corresponding to the optical-optical efficiency of 31.2% and the pump power of 3.58 W, and the pulse width was compressed to 41.4 ns with the ultrashort cavity length of 40 mm, and the pulse instability smaller than 4%. The beam quality factors and the angle drift were measured as M2x = 1.247 and M2y = 1.285 and 0.2 mrad, respectively.