With the rapid development of microwave photonic functionalities to support 5G and defence systems, there has been an increased interest in employing stimulated Brillouin scattering (SBS)-based functionalities to perform tasks that are currently difficult to achieve with conventional electronic devices. Several advances have been made using on-chip SBS to demonstrate RF frequency phase shifters, bandpass and bandstop filters, measurement systems, and delay lines. In this article, we provide an overview of some of these developments made possible by strong on-chip SBS gain. We also provide the reader with design guidelines on the selection of the appropriate waveguide geometry, subsystem design, and analog photonic link configurations to aid them in the realisation of their requisite MWP subsystem. We also focus on some of the design trade-offs that need to be considered when using integrated SBS.

中文翻译：

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布里渊散射的微波光子子系统设计

随着支持5G和防御系统的微波光子功能的快速发展，人们越来越关注采用基于受激布里渊散射（SBS）的功能来执行当前用常规电子设备难以实现的任务。使用片上SBS取得了一些进步，以演示RF频率移相器，带通和带阻滤波器，测量系统和延迟线。在本文中，我们概述了片上SBS的强劲增长使其中一些发展成为可能。我们还为读者提供有关选择合适的波导几何形状，子系统设计和模拟光子链路配置的设计指南，以帮助他们实现其必需的MWP子系统。