Pulse-periodic neodymium laser with wavefront reversal in a stimulated-Brillouin-scattering mirror and with frequency doubling

A determination was made of the characteristics of a YAG:Nd³⁺ laser with wavefront reversal and with frequency doubling in a DKDP crystal. The energy carried by each of the second harmonic pulses was 20 mJ and the divergence was close to the diffraction limit when the pulse repetition frequency was up to 50 Hz.