Straight line 10 Gbit/s soliton transmission over1000 kmof standard fibre with in-line chirped fibre gratingfor partial dispersion compensation

Abstract
The authors demonstrate a highly practical and robust soliton transmission system with partial dispersion compensation. Error free transmission was obtained for 10 Gbit/s data over 1000 km of standard fibre with nominal dispersion of 17 ps/nm.km. Despite variations in the dispersion compensation ratio and the relatively high UV-induced birefringence of the fibre gratings, the system exhibits BERs < 10–10 for any state of input polarisation provided that the average intra-span dispersion is negative.