Frequency Comb Distillation Enabling Broadband Microwave Photonic Channelized Receiver

Microwave photonics channelization has become a promising technology for ultra-wideband RF spectral analysis. In this paper, a wideband microwave photonics channelization scheme based on dual optical frequency combs with comb distillation technique is proposed. A 10 GHz bandwidth RF signal with frequencies from 2 to 12 GHz is down-converted to the same IF band with I-GHz instantaneous bandwidth, where the in-band crosstalk suppression is larger than 33 dB for all channels, and the spurious-free dynamic range of the system can reach
$101.3 \text{dB}\cdot \text{Hz}^{2/3}$
. Moreover, BERs for all channels without and with distillation are compared.