[论文解读] Photonic RF and microwave reconfigurable filters and true time delays based on an integrated optical Kerr frequency comb source

Xingyuan Xu, Jiayang Wu+7 more|Figshare|Jan 31, 2018

Advanced Fiber Laser Technologies参考文献 40被引用 41

一句话总结

该论文展示了使用集成微环的 Kerr 光学梳实现可重配置的射频/微波功能，为分集阵列提供高性能的真实时延以及可调的微波光子滤波器，结果与理论一致。

ABSTRACT

We demonstrate advanced transversal radio frequency (RF) and microwave functions based on a Kerr optical comb source generated by an integrated micro-ring resonator. We achieve extremely high performance for an optical true time delay aimed at tunable phased array antenna applications, as well as reconfigurable microwave photonic filters. Our results agree well with theory. We show that our true time delay would yield a phased array antenna with features that include high angular resolution and a wide range of beam steering angles, while the microwave photonic filters feature high Q factors, wideband tunability, and highly reconfigurable filtering shapes. These results show that our approach is a competitive solution to implementing reconfigurable, high performance and potentially low cost RF and microwave

研究动机与目标

• 使用集成的 Kerr 梳源实现先进的 RF/microwave 功能。
• 展示用于可调分集阵列天线的光学真实时延。
• 展示具有高 Q 值和广泛可调性的可重配置微波光子滤波器。

提出的方法

• 使用集成微环谐振腔来生成 Kerr 光学频梳。
• 以 Kerr 梳作为信号源实现横向的射频/微波信号处理。
• 表征用于分集阵列应用的真实时延性能。
• 展示可重配置的滤波形状及微波光子滤波器的可调性。
• 将实验结果与理论预测进行比较。

实验结果

研究问题

• RQ1 Kerr frequency combs from integrated micro-ring resonators enable high-performance optical true time delay for phased array antennas?
• RQ2 Can the Kerr comb source support reconfigurable, high-Q microwave photonic filters with wideband tunability?
• RQ3 Do experimental results for the Kerr-based system agree with theoretical models?
• RQ4 What beam steering range and angular resolution can be achieved with the true time delay enabled by the Kerr comb source?

主要发现

• Demonstrated optical true time delay suitable for tunable phased array antenna applications.
• Achieved high-Q, wideband tunable, and reconfigurable microwave photonic filters.
• Results show good agreement between experiment and theory.
• Validated the practicality of using an integrated Kerr comb source for reconfigurable RF/microwave photonic functions.