Mitigation of chromatic dispersion effects employing electroabsorption modulator-based transmitters

In this letter, it is shown that the dispersion-induced carrier suppression effect in externally modulated 1550-nm analog fiber-optic links may be mitigated by properly adjusting the chirp parameter of an external electroabsorption modulator. It is theoretically modeled and experimentally demonstrated that a significant increase on the frequency-length product of fiber-optic links is achieved with this chirp-adjusting technique, when compared to traditional methods.