In this paper, a method is proposed to reduce the sensitivity to chromatic dispersion over a fiber optic link based on mode-locked lasers for Millimeter Waves (MMW) generation and transmission. The simulation presented here gives an estimation of the length margin of fiber available for radio-over-fiber networks with minimal sensitivity and maximum received MMW power. The simulation results are verified experimentally by means of a 60 GHz mode-locked laser system combined with an unbalanced Mach Zehnder interferometer for the compensation of the impact of dispersion effects on transmitted MMW power and fiber length range.Index Terms-Chromatic dispersion, fiber link, millimeter waves (MMW) generation and transmission, mode-locked laser diode (MLLD), radio over fiber (RoF), unbalanced Mach Zehnder interferometer (UMZI).