On-chip metamaterial-enabled high-order mode-division multiplexing

IF 20.6 1区物理与天体物理 Q1 OPTICS

Advanced Photonics Pub Date : 2023-09-13 DOI:10.1117/1.ap.5.5.056008

Yu He, Xingfeng Li, Yong Zhang, Shaohua An, Hongwei Wang, Zhen Wang, Haoshuo Chen, Yetian Huang, Hanzi Huang, Nicolas K. Fontaine, Roland Ryf, Yuhan Du, Lu Sun, Xingchen Ji, Xuhan Guo, Yingxiong Song, Qianwu Zhang, Yikai Su

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引用次数: 0

Abstract

Mode-division multiplexing (MDM) technology enables high-bandwidth data transmission using orthogonal waveguide modes to construct parallel data streams. However, few demonstrations have been realized for generating and supporting high-order modes, mainly due to the intrinsic large material group-velocity dispersion (GVD), which make it challenging to selectively couple different-order spatial modes. We show the feasibility of on-chip GVD engineering by introducing a gradient-index metamaterial structure, which enables a robust and fully scalable MDM process. We demonstrate a record-high-order MDM device that supports TE0–TE15 modes simultaneously. 40-GBaud 16-ary quadrature amplitude modulation signals encoded on 16 mode channels contribute to a 2.162 Tbit / s net data rate, which is the highest data rate ever reported for an on-chip single-wavelength transmission. Our method can effectively expand the number of channels provided by MDM technology and promote the emerging research fields with great demand for parallelism, such as high-capacity optical interconnects, high-dimensional quantum communications, and large-scale neural networks.

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片上超材料高阶模分复用

模分复用(MDM)技术可以使用正交波导模式实现高带宽数据传输，从而构建并行数据流。然而，由于材料固有的大群速度色散(GVD)给不同阶空间模式的选择性耦合带来了挑战，因此很少有证明能够产生和支持高阶模式。我们通过引入梯度指数超材料结构来展示片上GVD工程的可行性，该结构实现了健壮且完全可扩展的MDM过程。我们演示了一个同时支持TE0-TE15模式的创纪录的高阶MDM设备。在16个模式信道上编码的40-GBaud 16-ary正交调幅信号有助于实现2.162 Tbit / s的净数据速率，这是迄今为止报道的片上单波长传输的最高数据速率。我们的方法可以有效地扩展MDM技术提供的通道数量，促进高容量光互连、高维量子通信、大规模神经网络等对并行性有很大需求的新兴研究领域的发展。

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来源期刊

Advanced Photonics OPTICS-

CiteScore

22.70

自引率

1.20%

发文量

审稿时长

18 weeks

期刊介绍： Advanced Photonics is a highly selective, open-access, international journal that publishes innovative research in all areas of optics and photonics, including fundamental and applied research. The journal publishes top-quality original papers, letters, and review articles, reflecting significant advances and breakthroughs in theoretical and experimental research and novel applications with considerable potential. The journal seeks high-quality, high-impact articles across the entire spectrum of optics, photonics, and related fields with specific emphasis on the following acceptance criteria: -New concepts in terms of fundamental research with great impact and significance -State-of-the-art technologies in terms of novel methods for important applications -Reviews of recent major advances and discoveries and state-of-the-art benchmarking. The journal also publishes news and commentaries highlighting scientific and technological discoveries, breakthroughs, and achievements in optics, photonics, and related fields.

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