Two-mode laser power spectra.
In recent studies on multimode solid state free-running lasers (i.e., in the absence of either mode or phase locking), it has appeared that the peaks of the power spectra verify remarkable relations [1]. The purpose of this Letter is to present a study of the two-mode case for which additional and more explicit results can be obtained. We also present experimental results which con rm the theoretical analysis. Multimode free-running solid-state lasers can be described by the Tang, Statz, and deMars rate equations [2]