抄録
A simple design method for longitudinally diodepumped solid-state lasers has been studied. The study indicates that the requirements of the focusing optics of the pump source to realize highly efficient. The desighn method was achieved by using an M2 factor to describe the multi-transverse mode beam of broad area diode lasers and was examined by using a diode pumped Nd:YVO4 miniature laser. A good agreement was obtained between theoretical and experimental output results. A low-threshold and 58.0 % slope efficiency laser oscillation were realized with circular output beam.