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We propose a novel simple photonic approach to generate microwave signals with tunable frequency. The approach is based on beating between two highly chirped pulse-trains with relative time-delay at the photodetector (PD). We derive mathematical expressions to describe the approach and present simulation results to show that, depending on the amount of dispersion introduced in the system, the generated...
An overview of microwave photonics research for defense applications in Singapore is given. Several examples of ongoing work in this area by the Singaporean academia will also be discussed.
A center frequency-tunable multi-tap bandpass microwave photonic filter (MPF) is proposed and experimentally demonstrated. A specially designed multi-wavelength fiber ring laser, in which a windowed Fabry-Pérot (FP) filter is used as the wavelength selection and power control component, has been developed to serve as the optical source for the MPF. By adjusting the windowed FP filter, both the wavelength...
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