Anomalies in frequency characteristics of solid-state ring laser

A theoretical analysis and experimental study of the frequency characteristics of a rotating solid state ring laser with attenuation of competing interaction of opposed waves due to additional nonlinear losses are presented. The frequency responses of solid state ring lasers are considerably different from those of gas ring lasers as a result of the slow relaxation of inverse population in solid state ring lasers. A number of unusual anomalous peculiarities are in frequency characteristics of rotating solid state ring lasers with uniformly broadened luminescence line of the active substance upon attenuation of competition of opposed wave. With a change in detuning between the lines of the amplifying and absorbing media, there may be an appreciable change in the absolute value of the frequency difference of opposed waves in a rotating solid state ring laser.