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To simultaneously stabilize a series of terahertz (THz) source devices, we propose the use of optical combs as a frequency reference source. The optical combs provide a number of equally-spaced cw lights with high accuracy, so that it is suitable for generation of a series of frequency reference signals. To generate broadband optical combs, a combination of the Mach-Zehnder-modulator-based flat comb...
A tunable single-passband microwave photonic filter with ultra-high out-of-band rejection ratio is proposed. In experiments, a rejection ratio up to 55 dB is obtained for tunable single-passband MPF using single stage for the first time. Tunable central frequency, bandwidth, and spectral profile are demonstrated.
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