Photonic Generation of Multicarrier Phase-Coded Microwave Signals Utilizing Polarization Manipulation

A method to generate a multicarrier phase-coded (MCPC) microwave signal is proposed and experimentally demonstrated. By optimizing the angle between the transverse-electric and transverse-magnetic modes in a phase modulator (PM), an MCPC microwave signal can be generated. Compared with the other reported schemes, the proposed one has an extremely simple structure, since only a PM is required. A proof-of-concept experiment is demonstrated to generate radio frequency signals with the carrier frequency of 5 and 10 GHz simultaneously and the coding rate of 1.25 Gb/s.