Properties of a distributed feedback dye laser with integrated amplifier

Several properties of a compact laser light source built up by a distributed feedback dye laser (DFDL) and an amplifier realized with only one dye solution cuvette are discussed. It is shown that in this arrangement the region of single pulse generation with respect to the pump energy applied to the DFDL is extended in comparison with a pure DFDL oscillator set-up. This effect is mainly caused by the radiation coupled back from the amplifier into the DFDL oscillator. The results of numerical simulations are discussed and compared with some experimental facts published in a previous paper.