Abstract

A photonic wideband RF subsampling and disambiguation method based on phase shift analysis is proposed and experimentally demonstrated in this paper. Byconstructing two optical subsampling links with different optical delays and analyzing the phase shift between sampled signals, the Nyquist frequency band of the RF signal can be determined. The exact signal frequency can be recovered according to the Nyquist band and the intermediate frequency. The scheme features low cost and simple operation. A proof-of-concept experiment is also performed.

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