• 文献标题:   Ultra-broadband and compact graphene-on-silicon integrated waveguide mode filters
  • 文献类型:   Article
  • 作  者:   XING P, OOI KJA, TAN DTH
  • 作者关键词:  
  • 出版物名称:   SCIENTIFIC REPORTS
  • ISSN:   2045-2322
  • 通讯作者地址:   Singapore Univ Technol Design
  • 被引频次:   2
  • DOI:   10.1038/s41598-018-28076-8
  • 出版年:   2018

▎ 摘  要

Increasing bandwidth demands in optical communications necessitates the introduction of mode-division multiplexing (MDM) on top of the existing wavelength-division multiplexing (WDM) systems. Simultaneous management of both multiplexing systems will be a complex task, and there is the possibility of signal degradation through modal crosstalk. Here, we propose graphene-on-silicon (GOS) integrated waveguide mode filters to suppress the propagation of spurious waveguide modes at the telecommunications wavelength. Graphene's high fabrication tolerance potentially enables surgical tailoring and deployment at targeted segments on the waveguide to absorb the undesired TE0 or TE1 modes. The proposed GOS waveguide mode filters can potentially improve the performance and reduce the device footprint of MDM systems.