Characterization of a 60 GHz passively mode locked quantum well laser with applications for radio over fibre

In this paper, a multimode quantum well Fabry-Perot laser with potential application as a carrier signal generator for radio-over-fibre (RoF) is characterized. The laser is passively mode-locked, with no saturable absorber, and exhibits pulsed operation at 60GHz with only d.c. bias applied. The optical spectra, optical linewidth and beat tone linewidth of the laser are all characterized. Due to its pulsed operation at 60GHz and its low linewidth, this laser could be a key low cost component for RoF and WPAN systems.