16 Gbit/s, 70 km pulse transmission by simultaneous dispersion and loss compensation with 1.5 μm optical amplifiers

A scheme for using semiconductor laser amplifiers for simultaneous compensation of both the fibre loss and the fibre dispersion in the 1.5 mu m region is proposed and demonstrated. Experimentally, the authors demonstrate propagation of 16 Gbit/s pulses over 70 km of non-dispersion-shifted fibre at 1.53 mu m wavelength. This distance is four times longer than the fundamental dispersion limit for transform-limited pulses. >