Photonic Generation and Transmission of Dual-Band Dual-Chirp Microwave Waveforms at C-Band and X-Band With Elimination of Power Fading

We propose a photonic method to generate and transmit dual-band dual-chirp microwave waveforms based on dual-polarization dual-parallel Mach-Zehnder modulator (DP-DPMZM). The key novelty of this work is the generation with flexible central frequency relationship meet requirement radar system, transmission generated elimination power fading. In proposed method, are by applying two different RF signals parabolic coding signal DP-DPMZM. By properly adjusting DC biases x -DPMZM xmlns:xlink="http://www.w3.org/1999/xlink">y -DPMZM, dispersion-induced fading effect in can be compensated. A proof-of-concept experiment conducted at C-band X-band (centered 7 GHz 10 GHz) tunable bandwidth. system has simple structure good reconfigurability, which great potential applications such as systems.