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Optical frequency comb (OFC) offers a promising platform for accomplishing simultaneous microwave down-conversion and filtering. However, microwave input needs to be restricted within a Nyquist zone to avoid the interferences generated from broadband RF signals and tightly spaced local oscillators. Here, we propose and demonstrate a novel method to suppress these interferences. With the assistance...
A novel photonic-assisted approach to realize seamless channelization based on silicon-on-insulator (SOI) integrated cascaded delay interferometers (DIs) is proposed and demonstrated. In this approach, cascaded DIs provides uniform spaced filters for different channels and a flat optical frequency comb (OFC) is used as local oscillator (LO) for frequency down-conversion. Since the frequency spacing...
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