Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon

Jingwen Ma; Taojie Zhou; Mingchu Tang; Haochuan Li; Zhan Zhang; Xiang Xi; Mickael Martin; Thierry Baron; Huiyun Liu; Zhaoyu Zhang; Siming Chen; Xiankai Sun

doi:10.1038/s41377-023-01290-4

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Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon

Original Articles

- Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon
- Light: Science & Applications Vol. 12, Issue 11, Pages: 2451-2458(2023)
- Affiliations：
  
  1.Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
  2.School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
  3.Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, UK
  4.Université Grenoble Alpes, CNRS, CEA-LETI, MINATEC, Grenoble INP, LTM, F-38054 Grenoble, France
- Author bio：
  
  Zhaoyu Zhang (zhangzy@cuhk.edu.cn)
  Siming Chen (siming.chen@ucl.ac.uk)
  Xiankai Sun (xksun@cuhk.edu.hk)
- Funds：
- DOI：10.1038/s41377-023-01290-4
  CLC：
- Published：30 November 2023，
  
  Published Online：30 October 2023，
  
  Received：22 June 2023，
  
  Revised：28 September 2023，
  
  Accepted：04 October 2023
- Accepted：
Scan QR Code
Ma, J. W. et al. Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon. Light: Science & Applications, 12, 2451-2458 (2023).
DOI：

Ma, J. W. et al. Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon. Light: Science & Applications, 12, 2451-2458 (2023). DOI： 10.1038/s41377-023-01290-4.

摘要

Abstract

Robust laser sources are a fundamental building block for contemporary information technologies. Originating from condensed-matter physics

the concept of topology has recently entered the realm of optics

offering fundamentally new design principles for lasers with enhanced robustness. In analogy to the well-known Majorana fermions in topological superconductors

Dirac-vortex states have recently been investigated in passive photonic systems and are now considered as a promising candidate for robust lasers. Here

we experimentally realize the topological Dirac-vortex microcavity lasers in InAs/InGaAs quantum-dot materials monolithically grown on a silicon substrate. We observe room-temperature continuous-wave linearly polarized vertical laser emission at a telecom wavelength. We confirm that the wavelength of the Dirac-vortex laser is topologically robust against variations in the cavity size

and its free spectral range defies the universal inverse scaling law with the cavity size. These lasers will play an important role in CMOS-compatible photonic and optoelectronic systems on a chip.

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references

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