Nd:YLF laser pumped at 797 nm with 68% slope efficiency

High-power Nd:YLF four-level lasers with 68% slope efficiency

“…Although 863 nm diodes can result in higher slope efficiency of the laser when compared to 800 nm diodes, they are much harder to come by and more expensive. On the other hand, 800 nm diodes are very common and can also reach very high efficiencies [15].…”

Efficient Trichromatic Nd:YLF Laser Emitting at 1047 nm, 1053 nm and 1314 nm

“…These results were essential to establish this cavity design as an excellent alternative to highly efficient side-pumped configurations [23,24]. Recently, single-bounce resonators yielded the record-breaking slope efficiency of 68% for an Nd:YLF diode-pumped at 797 nm, although it has failed to attain a diffraction-limited output beam [25,26]. An intriguing strategy to balance efficiency and high-beam quality in these side-pumped resonators involves the incorporation of a third folding mirror within the cavity.…”