NDLI: Direct-access mode-division multiplexing switch for scalable on-chip multi-mode networks

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Direct-access mode-division multiplexing switch for scalable on-chip multi-mode networks

Content Provider	Scilit
Author	Xu, Hongnan Liu, Chaoyue Dai, Daoxin Shi, Yaocheng
Copyright Year	2021
Abstract	By leveraging mode-division multiplexing (MDM), capacity of on-chip photonic interconnects can be scaled up to an unprecedented level. The demand for dynamic control of mode carriers has led to the development of mode-division multiplexing switches (MDMS), yet the conventional MDMS is incapable of directly accessing an individual lower-order mode that propagates in a multi-mode bus waveguide, which hinders its scalability and flexibility. In this paper, we propose and demonstrate the first direct-access MDMS as a novel platform for scalable on-chip multi-mode networks. At first, the highly efficient mode exchangers are developed for TE₀–TE₂ and TE₁–TE₂ mode swap, which are then employed to realize the direct-access mode add-drop multiplexers with high performances. The direct-access MDMS is then achieved based on the proposed mode add-drop multiplexers, which can be used for dynamically adding and dropping any selected mode carrier in a three-channel MDM. Moreover, the novel direct-access scheme is also adopted to simultaneously harness wavelength and mode carriers, leading to a wavelength/mode-hybrid multiplexing system with an enhanced link capacity of twelve channels. To further verify the utility of the MDMS, a multi-mode hubbed-ring network is constructed, where one hub and three nodes are organized within a ring-like multi-mode bus waveguide. The reconfigurable network traffic of 6 × 10 Gbps data streams are obtained by using three eigen modes as signal carriers. The measurement results show low bit-error rates (<10⁻⁹) with low power penalties (<3.1 dB).
Related Links	https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0441/pdf
Ending Page	4566
Page Count	16
Starting Page	4551
ISSN	21928606
e-ISSN	21928614
DOI	10.1515/nanoph-2021-0441
Journal	Nanophotonics
Issue Number	18
Volume Number	10
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2021-10-13
Access Restriction	Open
Subject Keyword	Nanophotonics Optics Mode-division Multiplexing On-chip Photonic Network Optical Switch Silicon Photonics Journal: Nanophotonics, Vol- 10
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Biotechnology

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