Analysis of an acousto-optically Q-switched intracavity frequency-doubled diode-pumped Nd : YAG laser

We report theoretical and experimental analyses on the pulse performance of an acousto-optically (AO) Q-switched intracavity frequency-doubled Nd : YAG laser with a linear resonator. For the properly designed linear resonator, a frequency-doubled laser beam with a short pulse width of 40 ns and an output power of 73 W is generated at a pulse repetition rate of 10 kHz and an input pump power of 476 W. The linear resonator is analyzed theoretically based on rate equations and is compared with the experimentally obtained frequency-doubled laser output power and pulse width.