Method of operating and optimising a WDM transmission system and corresponding computer program product

摘要

A method of operating a WDM transmission system (1) with at least one transmitter (4) and at least one receiver (6) connected by means of a dispersive transmission line (8). The proposed method comprises the steps of successively:
a) setting a tuneable dispersion pre-compensation value at a transmitter-side Tuneable Dispersion Compensation Module (5) in operative connection with the transmitter to a first predetermined value (PRE°);
b) setting or adjusting a tuneable dispersion post-compensation value at a receiver-side Tuneable Dispersion Compensation Module (7) in operative connection with the receiver to a second value (POST°) in order to optimise at least one characteristic of a transmitted signal at the receiver; and
c) simultaneously tuning the transmitter-side Tuneable Dispersion Compensation Module and the receiver-side Tuneable Dispersion Compensation Module with opposite respective dispersion shifts in order to further optimise said characteristic of the transmitted signal.