Radio-over-fiber DSB-to-SSB conversion using period-one dynamics of semiconductor lasers

Direct or external modulation scheme typically adopted in radio-over-fiber systems generates optical double-sideband modulation (DSB) signals. However, due to the microwave fading effect, optical single-sideband modulation (SSB) signals are preferred, therefore requiring DSB-to-SSB conversion. In this study, period-one nonlinear dynamics of semiconductor lasers is investigated to conduct such conversion for microwave frequency of more than 100 GHz. Only a typical laser is required and system self-tunability to the adjustment in microwave frequency is feasible.