Abstract We propose an optically controlled scheme to generate a multi-carrier PSK (phase-shift-keying) signal by using cross-polarization modulation (XPolM) in a highly nonlinear fiber (HNLF). A main advantage of our approach is all-optical multi-carrier PSK signal generation, which is promising for uninterrupted transmission and seamless connection of signal to different remote stations by fiber transmission for multi-band radar. The multi-carrier phase-coding is more resilient to electromagnetic interferences and can enhance the observation capabilities of radars. Thanks to the ultrafast nonlinear response of HNLF, the frequency and bandwidth of the multi-carrier PSK signal generator are widely tunable. The proposal all-optical system is analyzed theoretically and a proof-of-concept experiment is performed.

中文翻译：

---

在高度非线性光纤中使用交叉极化调制产生光控多载波相移键控微波信号

摘要 我们提出了一种光控方案，通过在高度非线性光纤 (HNLF) 中使用交叉极化调制 (XPolM) 来生成多载波 PSK（相移键控）信号。我们方法的一个主要优点是全光多载波 PSK 信号的生成，这有望通过多波段雷达的光纤传输实现信号的不间断传输和无缝连接到不同的远程站。多载波相位编码具有更强的抗电磁干扰能力，可以增强雷达的观测能力。由于 HNLF 的超快非线性响应，多载波 PSK 信号发生器的频率和带宽可广泛调谐。对该提议的全光系统进行了理论上的分析，并进行了概念验证实验。