Compensation of chromatic dispersion effects in microwave/millimeter-wave optical systems using four-wave-mixing induced in dispersion-shifted fibers

The authors report theoretical and experimental results on the compensation of chromatic dispersion effects in microwave/millimeter-wave optical systems employing four-wave mixing (FWM) induced in dispersion shifted fiber (DSF). The technique is based on generating a phase-conjugated wave by means of FWM in a 12.7-km-long DSF placed at the midspan of the fiber-optic link. The experimental results show that by using FWM a complete compensation of the electrical carrier suppression effect in a 50-km standard single-mode-fiber optic link is achieved.