Abstract
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.
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