A topological route to engineering robust and bright supersymmetric laser arrays

Authors

Soujanya Datta, Saha Institute of Nuclear Physics
Mohammad Alizadeh Fard, Michigan Technological UniversityFollow
Ramy El-Ganainy, Michigan Technological UniversityFollow
Krishanu Roychowdhury, Saha Institute of Nuclear Physics

Document Type

Article

Publication Date

12-18-2024

Department

Department of Physics

Abstract

In recent years, several proposals that leverage principles from condensed matter and high-energy physics for engineering laser arrays have been put forward. The most important among these concepts are topology, which enables the construction of robust zero-mode laser devices, and supersymmetry (SUSY), which holds the potential for achieving phase locking in laser arrays. In this work, we show that the relation between supersymmetric coupled bosonic and fermionic oscillators on one side, and bipartite networks (and hence chiral symmetry) on another side can be exploited together with non-Hermitian engineering for building one- and two-dimensional laser arrays with in-phase synchronization. To demonstrate our strategy, we present a concrete design starting from the celebrated Su-Schrieffer-Heeger (SSH) model to arrive at a SUSY laser structure that enjoys two key advantages over those reported in previous works. Firstly, the design presented here features a near-uniform geometry for both the laser array and supersymmetric reservoir (i.e., the widths and distances between the cavity arrays are almost the same). Secondly, the uniform field distribution in the presented structure leads to a far-field intensity that scales as N2 where N is the number of lasing elements. Taken together, these two features can enable the implementation of higher-power laser arrays that are easy to fabricate, and hence provide a roadmap for pushing the frontier of SUSY laser arrays beyond the proof-of-concept phase.

Publisher's Statement

© The Author(s) 2024. Publisher’s version of record: https://doi.org/10.1038/s42005-024-01905-1

Publication Title

Communications Physics

Recommended Citation

Datta, S., Alizadeh Fard, M., El-Ganainy, R., & Roychowdhury, K. (2024). A topological route to engineering robust and bright supersymmetric laser arrays. Communications Physics, 7(1). http://doi.org/10.1038/s42005-024-01905-1
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p2/1272

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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