Generation of a Fundamental/Doubled Frequency Phase-Coded Microwave Signal Based on Polarization Multiplexed Technology

Microwave photonic phase-shifting technology can be used to generate high-frequency, broadband, and tunable phase-coded microwave signals, which are helpful in solving the contradiction between detection range resolution radar systems. A method for generating a reconfigurable carrier signal of fundamental or doubled frequency, based on polarization multiplexed technology, is proposed verified by experiments this paper. dual-parallel dual-polarization Mach–Zehnder modulator (DP-DPMZM) polarization-dependent phase (PD-PM) were load signal, respectively. By reasonably configuring state RF switch bias voltages sub-DPMZM, frequency obtained through photoelectric conversion. The gives system wider work bandwidth effectively reduce requirement local oscillator (LO) signals. adjusting driving voltage, broadband phase-shifted within 360°, when control multilevel amplitude it binary, quaternary, other high-order have high performance potential application value multifunctional In addition, scheme has wideband tunability, since no optical filter involved. was theoretically analyzed experimentally verified. Binary, octal with frequencies centered at 8 GHz 16 GHz, successfully generated.