Long-haul soliton transmission at 1.3 /spl mu/m using distributed Raman amplification

10 Gb/s single channel soliton transmission over more than 10000 km in a standard communication fiber with distributed Raman amplification has been demonstrated in a recirculating fiber loop setup. It has been found that the Gordon-Haus timing jitter becomes the main limiting factor, provided that the generation of dispersive waves due to polarization mode dispersion has been minimized by adjusting the polarization state of the signal.