PERFORMANCE OF OPTICALLY AMPLIFIED DISPERSION-COMPENSATED LINKS - REDUCTION OF THE TIME JITTER FOR RETURN TO ZERO SIGNALS

We report on a numerical study of the performance of optically amplifi ed systems operating in links with dispersion management, evaluating t he Q factor and the time jitter. By a comparison of the return to zero signals and nonreturn to zero signals, and considering different sawt ooth distributions of chromatic dispersion we have found the best prop agation conditions for links operating at transoceanic distances. The results show that soliton signals permit to achieve the highest perfor mance when they propagate in Links with a sawtooth distribution with a low anomalous average GVD and when the parameters of the dispersion m anagement satisfy some conditions. The main advantages of dispersion m anagement for soliton signals are the increase of the tolerance of the signal power and the reduction of the time jitter. (C) 1997 Published by Elsevier Science B.V.