Gostimirovic Dusan, Ye Winnie N
Opt Lett. 2021 Jan 15;46(2):388-391. doi: 10.1364/OL.412578.
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.
据我们所知，我们通过实验首次证明了基于微盘的硅光子模式分路（解复用）器电路，该电路与波分复用兼容，可实现高聚合带宽的片上光通信。该电路采用波导环绕的微盘谐振器，在超紧凑的尺寸内具有低水平的模式间串扰和插入损耗。此外，所提出的器件具有增加的自由光谱范围，可实现530个组合数据通道。此外，微盘结构自然支持垂直取向的耗尽型pn结，已证明其可实现亚飞焦每比特的调制效率。波导环绕的微盘谐振器的高调制效率、紧凑性和宽自由光谱范围为下一代数据处理和通信应用中更高的带宽和更低的能耗展现了潜力。
