Ultrashort pulse-propagation effects in a semiconductor opticalamplifier: microscopic theory and experiment

摘要

We present microscopic modeling and experimental measurements ofnfemtosecond-pulse interactions in a semiconductor optical amplifier. Twonnovel nonlinear propagation effects are demonstrated: pulse break-up innthe gain regime and pulse compression in the transparency regime. Thesenpropagation phenomena highlight the microscopic origin and importantnrole of adiabatic following in semiconductor optical amplifiers.nFundamental light-matter interactions are discussed in detail andnpossible applications are highlighted