Photonic filters are playing a very important role in many applications, including optical interconnects as well as optical sensing. As silicon photonics has provided a very attractive platform to realize the high integrated intensity and low cost, various silicon-based on-chip photonic filters have been proposed and demonstrated in the past decade. In this paper, we give a review of recent progresses of silicon photonic filters based on different structures, including Mach-Zehnder interferometers, microring resonators, waveguide Bragg grating, and arrayed-waveguide gratings.

中文翻译：

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硅光子滤波器

光子滤波器在许多应用中发挥着非常重要的作用，包括光学互连和光学传感。由于硅光子学提供了一个非常有吸引力的平台来实现高集成强度和低成本，因此在过去十年中已经提出并展示了各种基于硅的片上光子滤波器。在本文中，我们回顾了基于不同结构的硅光子滤波器的最新进展，包括马赫-曾德干涉仪、微环谐振器、波导布拉格光栅和阵列波导光栅。