Photonics-based de-chirp processor with the capability of processing dual-band signals

A photonics-based de-chirp processor with the capability of processing dual-band linearly frequency-modulated (LFM) waveforms is proposed and demonstrated. Two de-chirped signals will be output simultaneously and independently, while no special requirement of the input signals' chirp rates is needed. A proof-of-concept experiment is carried out. De-chirp processing of dual-band signals (X- and Ku-band) is successfully implemented. The crosstalk suppression ratio of more than 40 dB is achieved with de-chirped results in the two bands.

Automated summary

The photonics-based de-chirp processor can process dual-band linearly frequency-modulated waveforms simultaneously and independently, without requiring special input signals' chirp rates. A proof-of-concept experiment successfully demonstrated de-chirp processing of X- and Ku-band signals with crosstalk suppression ratio of over 40 dB in both bands.