Study of the Electronic Dispersion Compensation for 2.5 and 10 Gb/s Transient and Adiabatic Chirped Directly Modulated Lasers

In this paper we report the results of the effect of electronic dispersion compensation (EDC) when directly modulated lasers with different chirp characteristics at 2.5 and 10 Gb/s are used. The extracted parameters of directly modulated lasers that were used in this work have been previously verified by simulations and experiments. The performance efficiency of EDC is evaluated in terms of eye opening penalty degradation associated with the signal transmission over standard single mode fiber. Eye opening penalty measurements reveal significant performance improvement for all the examined cases. The transmission limits of standard single mode fiber links using electronic feedforward equalizer and decision feedback equalizer are presented. The benefit of electronic dispersion compensation on directly modulated based systems is that it offers great potential to applications in metro/access networks with high data rates.