Effects of dynamic Stark shifts on two-photon side-mode instabilities

Abstract

We have extended our two-photon two-level instability model to include the effects of level Stark shifts and find that the shifts tend to expand the regions of side-mode gain that allow single-wavelength and multiwavelength instabilities to occur. In addition, we find that the instabilities are strongly affected by conjugate scattering off the pump-induced two-photon coherence.