Arbitrarily routed mode-division multiplexed photonic circuits for dense integration

Yingjie Liu, Ke Xu (), Shuai Wang, Weihong Shen, Hucheng Xie, Yujie Wang, Shumin Xiao, Yong Yao (), Jiangbing Du (), Zuyuan He and Qinghai Song ()
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Yingjie Liu: Harbin Institute of Technology (Shenzhen)
Ke Xu: Harbin Institute of Technology (Shenzhen)
Shuai Wang: Harbin Institute of Technology (Shenzhen)
Weihong Shen: Shanghai Jiao Tong University
Hucheng Xie: Harbin Institute of Technology (Shenzhen)
Yujie Wang: Harbin Institute of Technology (Shenzhen)
Shumin Xiao: Harbin Institute of Technology (Shenzhen)
Yong Yao: Harbin Institute of Technology (Shenzhen)
Jiangbing Du: Shanghai Jiao Tong University
Zuyuan He: Shanghai Jiao Tong University
Qinghai Song: Harbin Institute of Technology (Shenzhen)

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract On-chip integrated mode-division multiplexing (MDM) is an emerging technique for large-capacity data communications. In the past few years, while several configurations have been developed to realize on-chip MDM circuits, their practical applications are significantly hindered by the large footprint and inter-mode cross talk. Most importantly, the high-speed MDM signal transmission in an arbitrarily routed circuit is still absent. Herein, we demonstrate the MDM circuits based on digitized meta-structures which have extremely compact footprints. 112 Gbit/s signals encoded on each mode are arbitrarily routed through the circuits consisting of many sharp bends and compact crossings with a bit error rate under forward error correction limit. This will significantly improve the integration density and benefit various on-chip multimode optical systems.

Date: 2019
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DOI: 10.1038/s41467-019-11196-8

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