Spectral response of optical switches based on chalcogenide bistable fiber Bragg gratings

This contribution presents numerical studies of the nonlinear fiber Bragg gratings (FBGs). The proposed model corresponds well to chalcogenide FBGs as a considerable tool for optical switching. The spectral response of this device is discussed theoretically. Simulations based on the nonlinear coupled mode theory are used for investigating the relationships between the spectral transmission of nonlinear chalcogenide FBGs and the grating parameters.