We demonstrate optical switching in a Fabry-Perot saturable absorber (FPSA) using pump-probe technique at 5 MHz rate. The mechanism is based on controlling the reflectivity of the FPSA via the pump power while operating the device at its resonant.
In this paper, we develop a theoretical model that accurately describes the nonlinear phenomenon of optical bistability in Fabry-Perot laser containing a saturable absorber "LSA". We present an analytical model for optical bistability in a LSA. The physics of optical bistability in a classical optical resonant system such as Fabry-Perot etalon has been well-established, and can be described by simple analytical models. The photon intensities were determined as a function of the pumping rate of the active medium, and we analyzed the linear stability of the stationary solutions obtained.