Characteristics of pulsed/cw vanadate lasers operating at 2 micron

We developed a diode-side-pumped Tm:GdVO4 laser with a conductively cooled pump head as a pump source of a Ho laser. The laser produced an output energy of 32 mJ at a pulse repetition frequency of 5 Hz. In addition, continuous-wave operation was demonstrated in a Tm,Ho:GdVO4 microchip laser. An output power of 0.43 W and a slope efficiency of 33% were achieved near room temperature.