Diode-Pumped Nanosecond Pulsed Laser with Pulse-Transmission-Mode Q-Switch

Q-switched pulses at 1.064 µm with a peak power of 5.02 kW and a pulse width of 2.8 ns were obtained which were pumped by a 1 W laser diode on the Nd:YVO4 microchip at the 1 kHz repetition rate. These values were achieved by combining the techniques of acousto-optic Q-switching and electro-optic pulse-transmission-mode Q-switching. The temporal characteristics of the pulses were analysed numerically. The experimental results are shown to be in good agreement with theoretical predictions.