Microwave Photonics Research Laboratory, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
Opt Lett. 2013 Mar 1;38(5):766-8. doi: 10.1364/OL.38.000766.
A scheme for the generation of phase-coded microwave signals using an electrically tunable photonic microwave phase shifter is proposed and demonstrated. The photonic phase shifter is based on a single-sideband polarization modulator (PolM), and the tuning of the phase shifter is implemented by a second PolM. By introducing an RF signal to the first PolM and an electrical coding signal to the second PolM, a phase-coded microwave signal with binary phase codes or polyphase codes is achieved. An experiment is performed. The simple and flexible operation, high coding rate, large frequency range, excellent transmission performance, and high stability of the system is confirmed.
提出并演示了一种使用电可调光子微波相移器生成相位编码微波信号的方案。该光子相移器基于单边带偏振调制器（PolM），通过第二 PolM 实现相移器的调谐。通过向第一 PolM 引入射频信号和向第二 PolM 引入电编码信号，实现了二进制相位码或多相码的相位编码微波信号。进行了实验。验证了系统操作简单灵活、编码速率高、频率范围大、传输性能优异、稳定性好。
