An Algorithm for the Parameters Extraction of a Semiconductor Optical Amplifier

The parameters of an encapsulated semiconductor optical amplifier (SOA) are obtained by a proper extraction algorithm using a technique based both on measurements and modeling. The theoretical model is based on rate equations and the experiments use continuous wave optical gain curves measured for different injected currents and optical input powers. The algorithm analyses the derivatives of the gain curves in relation to the longitudinal SOA dimension. After the parameters extraction procedure, a good accuracy is achieved for the SOA operating as a high frequency carrier modulated optical amplifier.