title: High-efficiency microwave photonic harmonic down-conversion with tunable and reconfigurable filtering.
abstract: A new optical-frequency comb-based microwave photonic harmonic down-convertor with tunable and reconfigurable filtering is proposed and experimentally demonstrated. The coherent evenly spaced optical carriers offer harmonic down-conversion for ultrahigh radio frequency signals with low-frequency local oscillator, and construct a tunable and reconfigurable bandpass filter for the intermediate-frequency (IF) signal combined with dispersion. This implementation features high conversion efficiency. Experimental results show the filtered output IF signal has a clean spectrum with high quality. Measured conversion loss is 8.3 dB without extra electrical amplification.
authors.forename: Jinxin
authors.initials: J
authors.lastname: Liao
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Zheng
authors.forename: Shangyuan
authors.initials: S
authors.lastname: Li
authors.forename: Hanyi
authors.initials: H
authors.lastname: Zhang
authors.forename: Bingkun
authors.initials: B
authors.lastname: Zhou