Model of pulsations of the radiation emitted by a solid-state laser

A simple model is proposed for the description of pulsations (spiking) of the radiation emitted by a solid-state laser. The model is based on rate equations with random forces. When the noise level reaches a certain small critical value, the emission becomes quasiperiodic. Spiking is observed at a higher noise level. Experimental results obtained in studies of the amplitude stabilization are interpreted.