Record Optical Efficiency for a Diode-Side-Pumped Nd:YLiF4 Laser Operating at 1053 nm

Here we compare the efficiency and beam parameters of different single-bounce Nd:YLF
₄
resonators. A total of five cavities were made by changing both, the curved mirror and the output coupler of the resonator. The best configuration resulted in a cavity that generated a record optical-to-optical efficiency of 63.3% and 66.4% of slope efficiency, with a peak output power of 64.5 W for a pumping power of 101.8 W at 797 nm.