Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Research Briefing
  • Published:

Topological lasing demonstrated in the mode-locked regime

The concept of temporal mode-locking has been leveraged to study the interplay between laser mode-locking and photonic lattices that exhibit non-Hermitian topological phenomena. The results suggest new opportunities to study nonlinear and non-Hermitian topological physics as well as potential applications to sensing, optical computing and frequency-comb design.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Topological temporal mode-locking.

References

  1. Smirnova, D., Leykam, D., Chong, Y. & Kivshar, Y. Nonlinear topological photonics. Appl. Phys. Rev. 7, 021306 (2020). This review article covers nonlinear topological photonics, including topological lasers.

    Article  ADS  CAS  Google Scholar 

  2. Yang, Z. et al. Mode-locked topological insulator laser utilizing synthetic dimensions. Phys. Rev. X. 10, 011059 (2020). This paper reports a simulation of a topological mode-locked laser with a spatial dimension and a synthetic frequency dimension.

    CAS  Google Scholar 

  3. Longhi, S. Non-Hermitian topological phase transition in PT-symmetric mode-locked lasers. Opt. Lett. 44, 1190–1193 (2019). This paper includes the simulation of a topological mode-locked laser with a synthetic frequency dimension.

    Article  ADS  CAS  PubMed  Google Scholar 

  4. Gong, Z. et al. Topological phases of non-hermitian systems. Phys. Rev. X. 8, 031079 (2018). This paper presents a theoretical study of non-Hermitian point-gap topology.

    CAS  Google Scholar 

  5. Hatano, N. & Nelson, D. R. Localization transitions in non-Hermitian quantum mechanics. Phys. Rev. Lett. 77, 570–573 (1996). This paper introduces the theoretical Hatano–Nelson model, which we have studied experimentally.

    Article  ADS  CAS  PubMed  Google Scholar 

Download references

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This is a summary of: Leefmans, C. R. et al. Topological temporally mode-locked laser. Nat. Phys. https://doi.org/10.1038/s41567-024-02420-4 (2024).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Topological lasing demonstrated in the mode-locked regime. Nat. Phys. (2024). https://doi.org/10.1038/s41567-024-02421-3

Download citation

  • Published:

  • DOI: https://doi.org/10.1038/s41567-024-02421-3

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing