Fast estimation of dispersion and initial chirp penalties by using TRC parameters

We have developed a wavelength domain simulation approach that can estimate the dispersion penalty due to initial chirp. This method only requires estimation of two parameters, i.e. effective chirp duration and effective chirp peak value, from the measured time resolved chirp (TRC) data. It is very fast comparing to full time domain simulation since it does not require the calculation of the time domain signal propagation in fiber. The method is based on a simple phenomenological model that is capable to predict the dispersion/chirp-induced eye-closure penalty. Model can estimate other system performance indicators such as BER and Q factor by taking into account the effects such as ASE, thermal and shot noise, extinction ratio etc. We have compared our results with published experimental data and full time domain simulations and have observed very good agreement.