ABSTRACT

Integrated Kerr micro-combs are a powerful source of multiple wavelength channels for photonic radio frequency (RF) and microwave signal processing, particularly for transversal filter systems. They offer significant advantages featuring a compact device footprint, high versatility, large numbers of wavelengths, and wide Nyquist bands. We review progress on photonic RF and microwave high bandwidth temporal signal processing based on Kerr micro-combs with comb spacings from 49 GHz to 200 GHz. We focus on integral and fractional Hilbert transforms, differentiators as well as integrators. The future potential of optical micro-combs for RF photonic applications in terms of functionality and ability to realize integrated solutions is also discussed.

摘要

集成的Kerr微梳是用于光子射频（RF）和微波信号处理（尤其是横向滤波器系统）的多波长通道的强大来源。它们具有显着的优势，具有紧凑的设备尺寸，高多功能性，大量波长和宽奈奎斯特频带。我们回顾了基于Kerr微梳的光子RF和微波高带宽时间信号处理的进展，梳齿间距从49 GHz到200 GHz。我们专注于积分和分数Hilbert变换，微分器以及积分器。从功能和实现集成解决方案的能力方面，还讨论了用于RF光子应用的光学微梳子的未来潜力。