Pulse energy enhancement in a Passively Q-switched Yb:Lu0.74Y0.23La0.01VO4 laser with ReS2 saturable absorber

ReS2 is emerging as a promising saturable absorber for solid-state lasers from visible to mid-infrared. In this paper, we report on a new approach of integrating a ReS2 saturable absorber into Yb:Lu0.74Y0.23La0.01VO4 crystal based Q-switched laser. Under maximum pump power, the highest pulse energy at 1.03 mu m wavelength was measured as 5.3 mu J, which is one order of magnitude higher compared with the previously reported 1 mu m solid-state passively Q-switched lasers based on ReS2 saturable absorber.

Automated summary

This study successfully integrated a ReS2 saturable absorber into a Yb:Lu0.74Y0.23La0.01VO4 crystal-based Q-switched laser, achieving a highest pulse energy of 5.3 μJ at a wavelength of 1.03 μm under maximum pump power, which is one order of magnitude higher than previously reported solid-state lasers based on ReS2 saturable absorbers at 1 μm.