FABRY-PEROT BISTABILITY WITH NONLINEAR ABSORPTION AND DISPERSION

Calculations of light interaction with medium exhibiting both nonlinea r absorption and dispersion based on one plane-wave and slowly varying envelope approximations are presented. A two level model of atoms (mo lecules) has been assumed as a basis for the nonlinear susceptibility which was then determined without expanding it in a series of the elec tric field. General formulae for the intensity of the transmitted wave are derived and some numerical calculations are performed. It has bee n shown that under this model the optical bistability is possible and some conditions for its onset have been established.