Fig. 1. Experiment setup of single frequency pulsed Nd∶YAG laser oscillation and power amplification system

Fig. 2. Structure diagram of the Nd∶YAG rod

Fig. 3. Nd∶YAG crystal models

Fig. 4. Temperature field of the crystal models under LD continuous single-ended pumping

Fig. 5. Pulse energy and pulse width as a function of the pump power of the oscillator at the repetition rate of 25 Hz

Fig. 6. The output pulse waveform of the oscillator

Fig. 7. Pulse energy as a function of the pump current of the amplifier at the repetition rate of 25 Hz

Fig. 8. The output pulse waveform of the amplifier