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We propose and characterize a promising digital coherent receiver for analog photonic link architecture based on a novel I/Q-demodulation module. Using the proposed scheme, signal demodulation of QPSK modulated RF carrier is experimentally demonstrated.
We propose and experimentally demonstrate a novel digital post compensation technique to suppress the third-order intermodulation distortion (IMD3) in intensity-modulated analog optical links incorporating photonic frequency downconversion.
Multiple microwave frequencies sensing ranging from 15 to 20 GHz is reported based on compressive sampling. A maximum detection error of 150 kHz is achieved using a single ADC with analog bandwidth of 826.75 MHz.
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