Microwave Photonic Signal Generation in an Optically Injected Discrete Mode Semiconductor Laser

In this paper, microwave photonic signal generation based on the period-one dynamic of optically injected discrete mode (DM) semiconductor lasers has been experimentally demonstrated and numerically simulated. The results show that frequency generated increases linearly with detuning or optical injection ratio. addition, a single feedback loop is sufficient to reduce linewidth without significantly deteriorating side suppression. simulation using model considering nonlinear dependencies carrier recombination agree well experimental results, which indicates effect important in determining dynamics DM lasers.