Tandem of electroabsorption modulators integrated with distributed feedback laser and optical amplifier for 20-Gbit/s pulse generation and coding at 1.5 μm

Abstract
In summary a four-section InGaAsP-InGaAsP MQW electro optical modulator photonic-integrated circuit has been achieved for short optical pulse generation and coding, using a very simple approach. 16-GHz bandwidths of the modulators are reported with a record optical power budget, which make this realization of great interest for practical 20-Gbit/s transmission applications.