Hi,
Here i am adding a link of a research work by R.S. Kaler, Ajay K.Sharma, T.S. Kamal namely: Comparison of pre-, post- and
symmetrical-dispersion compensation schemes for 10 Gb/s NRZ links using standard and dispersion compensated fibers.
In this paper they compared all three techniques of dispersion compensation.
The results of three compensation methods have been compared and it is found that the symmetrical compensation method is superior to
pre- and post-compensation methods.On comparing pre- and post-compensation methods, it is found that the later is superior to the former.
I also agree to his points of The symmetrical compensation has the best performance followed by post- and pre-compensation”.
Also, the influence of transmission
distance on the three compensation methods has
been discussed by simultaneously increasing the
lengths of fibers and keeping the EDFA power
constant.As the lengths of the fibers are increased,
the bit error rate increases.The bit error rate for
symmetrical compensation method is again minimum
but for pre- and post-compensation methods,
the situation is not so good.
Thanks,