Bistabilité optique dans les lasers à absorbants saturables

Abstract

Our work concerns the study of the optical bistability of a laser containing a saturable absorber of a circular resonator with an inhomogeneous broadening. One will study theoretically the influence of the losses resonators on the optical bistability by examining mainly the cases where losses of the resonator depend on the position of the mode emitted on frequency and on density of photons. In the paper it is examined for each loss the influence of the physical parameters of the laser containing a saturable absorber such as the coefficient of saturation, pumping of the active medium, and absorbing on the density of the photons. A program in Matlab is elaborate in order to determine to determine the effect of this optical bistability and to draw the curves representing the density of the photons in the pumping function of the active medium. One showed the effect of the optical bistability after analysis of the linear stability of the obtained solutions