Wideband Steady-State Model of a Strained InGaAsP MQW-SOA

A steady-state model of a strained MQW-SOA is described. Least-squares fitting of the model to experimental polarization resolved amplified spontaneous emission spectra is used to obtain difficult to measure model parameters such as the line-broadening lineshape parameters, Auger recombination, bandgap shrinkage, and intervalence band absorption coefficients. Well capture and escape processes are modeled by a carrier density dependent net escape time which accounts for barrier effects. Simulations and comparisons with experimental data are given which demonstrate the accuracy and versatility of the model.