Direct generation of vortex beams from a diode-pumped Pr3+:YLF laser

Abstract

We have demonstrated the direct generation of visible structured light beams, scalar and vector vortex modes with a wavelength of 640nm from a diode-pumped Pr3+:YLF laser by employing an off-axis pumping technique. A maximum output of similar to 100 mW was achieved at a pump power of 1.2 W. Such red structured light beams will be potentially applied to super-resolution fluorescent microscopes and microfabrications. (C) 2019 The Author(s)