Abstract
Upgrade of existing 10Gbit/s OOK terrestrial WDM systems to 40 Gbit/s can be realised by switching modulation formats and carefully retuning the chromatic dispersion compensation. We numerically investigate various arrangements of dispersion management in an existing terrestrial link, with the aim to find a trade-off between cost efficiency and performance. We consider the particular 838 km terrestrial link as described in Fig. 1 and [1], which is typical of links between major European cities. The RZ-DPSK modulation format is considered. Our main objective is to study the effects of concentrating the Dispersion Compensation Modules (DCMs) at specific points along the dispersion map - lumped mapping (compare to [1,2]), as opposite to deploying a larger number of smaller (DCMs) placed periodically along the map. Details of system setup and numerical modelling will be given in the conference.
© 2007 IEEE
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