Guo Yuxiao, Wang Muguang, Li Yan, Wang Jian, Chen Desheng
Opt Lett. 2023 Aug 15;48(16):4272-4275. doi: 10.1364/OL.497822.
A novel photonic method for multi-format chirped signal generation with a high switching rate based on a dual-polarization binary phase shift keying (DP-BPSK) modulator is proposed and demonstrated. An up-chirp signal and a binary code signal are used to drive one of the sub-dual-drive Mach-Zehnder modulators (sub-DDMZMs) integrated in the DP-BPSK modulator. Another integrated sub-DDMZM is driven by a down-chirp signal and another binary code signal. By carefully tuning the DC biases of the DP-BPSK modulator, the format of the output chirped signal is controlled by the binary code signals. A proof-of-concept experiment is performed and multi-format chirped signals with a high switching rate are generated. Due to the high switching rate, simple structure, and high adjustability, the proposed multi-format chirped signal generator may find potential applications in multifunctional radar systems, wireless communication systems, and dual-function radar-communication systems.
提出并演示了一种基于双偏振二进制相移键控（DP-BPSK）调制器的具有高切换速率的多格式啁啾信号生成的新型光子方法。一个升啁啾信号和一个二进制编码信号用于驱动集成在DP-BPSK调制器中的一个子双驱动马赫-曾德尔调制器（sub-DDMZM）。另一个集成的sub-DDMZM由一个降啁啾信号和另一个二进制编码信号驱动。通过仔细调整DP-BPSK调制器的直流偏置，输出啁啾信号的格式由二进制编码信号控制。进行了概念验证实验，并生成了具有高切换速率的多格式啁啾信号。由于高切换速率、简单结构和高可调节性，所提出的多格式啁啾信号发生器可能在多功能雷达系统、无线通信系统和双功能雷达通信系统中找到潜在应用。
