Soliton generation and coding are obtained using a novel, and simple t
andem integrated electroabsorption (EA) MQW modulator structure. Negli
gible electrical crosstalk (<40 dB) is obtained due to the integration
, between the modulators, of an optical amplifier based on the same ac
tive layer. This also allowed a very low fibre to fibre insertion loss
of 9 dB. The device was operated at 10 Gbit/s.