Dirac-vortex topological photonic crystal fibre

Hao Lin; Ling Lu

doi:10.1038/s41377-020-00432-2

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Dirac-vortex topological photonic crystal fibre

Original Articles

- Dirac-vortex topological photonic crystal fibre
- Light: Science & Applications Vol. 9, Issue 6, Pages: 1850-1856(2020)
- Affiliations：
  
  1.Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China
  2.School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  3.Songshan Lake Materials Laboratory, Dongguan, 523808 Guangdong, China
- Author bio：
  
  Ling Lu (linglu@iphy.ac.cn)
- Funds：
- DOI：10.1038/s41377-020-00432-2
  CLC：
- Published：2020，
  
  Published Online：22 December 2020，
  
  Received：18 March 2020，
  
  Revised：30 October 2020，
  
  Accepted：11 November 2020
- Accepted：
Scan QR Code
Lin, H. & Lu, L. Dirac-vortex topological photonic crystal fibre. Light: Science & Applications, 9, 1850-1856 (2020).
DOI：

Lin, H. & Lu, L. Dirac-vortex topological photonic crystal fibre. Light: Science & Applications, 9, 1850-1856 (2020). DOI： 10.1038/s41377-020-00432-2.

摘要

Abstract

The success of photonic crystal fibres relies largely on the endless variety of two-dimensional photonic crystals in the cross-section. Here

we propose a topological bandgap fibre whose bandgaps along in-plane directions are opened by generalised Kekulé modulation of a Dirac lattice with a vortex phase. Then

the existence of mid-gap defect modes is guaranteed to guide light at the core of this Dirac-vortex fibre

where the number of guiding modes equals the winding number of the spatial vortex. The single-vortex design provides a single-polarisation single-mode for a bandwidth as large as one octave.

关键词

Keywords

references

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