Bit error rate measurement of 2.5 Gbit/s data modulated solitons generated by InGaAsP EA modulator using a circulating loop

The bit error rate and waveform of transform-limited optical solitons generated by a sinusoidally modulated electroabsorption modulator using a circulating loop are characterised. Less than 10/sup -9/ BER was achieved at 2.5 Gbit/s over 6400 km. The results show the promising future of simple and stable optical pulse generation using electroabsorption modulators. >