Optimization of pre- and post-dispersion compensation schemes for 10-Gbits/s NRZ links using standard and dispersion compensating fibers

We perform a systematic numerical optimization of pre- and post-compensatio n normalized sections using standard and dispersion compensating fibers for non-return to zero 10-Gbits/s single channel systems. By independently var ying the power at the different types of fibers inputs and the compensation ratio, we find that post-compensation performs better than precompensation at the expense of stricter parameter tolerance. Moreover, we show that bot h pre- and post-compensated systems can be significantly improved by using passive predistortion at the transmitter.