The observation of stable self-pulsing of a single-transverse-mode alexandrite laser with a Fabry–Perot cavity is reported. This process occurs many times above threshold and depends on the pump wavelength. The novel theoretical model, in which the dynamics of the host lattice phonons is taken into account, is shown to explain this phenomenon. The border of the Hopf bifurcation is found in the plane of two parameters: the intensity and the frequency of the pump laser. In the region where self-pulsations occur they are proved to be the result of the photon–phonon energy pulling.
© 1998 Optical Society of America
W. Gadomski and B. Ratajska-Gadomska, "Self-pulsations in phonon-assisted lasers," J. Opt. Soc. Am. B 15, 2681-2688 (1998)