We experimentally demonstrate, to the best of our knowledge, the first microdisk-based silicon-photonic mode-division (de)multiplexer circuit, which is compatible with wavelength-division multiplexing for high aggregate bandwidth on-chip optical communications. This circuit uses waveguide-wrapped microdisk resonators, featuring low levels of intermodal crosstalk and insertion loss within an ultracompact footprint. In addition, the proposed device presents an increased free spectral range, allowing for 530 combined data channels. Furthermore, the microdisk structure naturally supports vertically oriented depletion-type pn junctions, which have been shown to reach subfemtojoule-per-bit modulation efficiencies. The high modulation efficiency, compactness, and wide free spectral range of waveguide-wrapped microdisk resonators present the potential for higher bandwidth and lower energy consumption in next-generation data processing and communication applications.

中文翻译：

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使用波导包裹的微盘谐振器的紧凑型硅光子模式分割（de）多路复用器

据我们所知，我们实验性地展示了第一个基于微盘的硅光子模式分割（de）复用器电路，该电路与波分复用兼容，可实现高总带宽的片上光通信。该电路使用波导包裹的微盘谐振器，在超紧凑的占位面积内具有低水平的联运串扰和插入损耗。另外，所提出的设备呈现出增加的自由光谱范围，从而允许530个组合数据信道。此外，微盘结构自然支持垂直定向的耗尽型pn结，这些结已显示达到每比特飞秒的调制效率。调制效率高，结构紧凑，