Hi Damian..
thanxx for the reply..i tried to follow the link you have suggested but still not been able to understand..let me put my question in a better way.. Suppose we want to check performance of 8 channel OOK NRZ 10 gbps WDM system..i want to know the Q Factor of any WDM channel when Non Linear noise effects are applied with respect to when non linear effects are disabled..Please consider rest of the factors like power per channel, spacing of signals etc as per ur convenience.. Thanxx once again..
regards..
mani