High quality soliton loss-compensation in 38km dispersion-decreasing fibre

We report the fabrication of a 38 km soliton loss-compensating, dispersion decreasing fibre with an exponential dispersion profile accurately matched to the fibre loss. High quality, loss compensation for 3.5 ps soliton pulses over 38 km (~19 soliton periods) is demonstrated for the first time to our knowledge.