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ARTICLE SUMMARY / 2026

Dynamical Control of Non-Hermitian Coupling between Subthreshold Nanolasers Enables Q-Switched Pulse Generation

K. Seegert, R. Gajardo, G. Huyet, F. Raineri & G. Madiot

ACS Photonics · 13, 5083–5089

Summary

Can coupled cavities release stored carrier energy through dynamically changing modal losses?

Uses asymmetric optical pumping of waveguide-coupled InP nanocavities and a carrier rate-equation model.

Demonstrates pulse generation controlled by the collective coupling and carrier dynamics.

Commentary

This is not a spin-injection experiment; its connection to spin lasers is the shared mode-competition and gain/loss problem.

An experimental counterpart to reduced non-Hermitian laser models, with coupling treated as a dynamical resource.

Interpretation and connections in this note, separate from the authors’ reported findings.

Related modelling approaches

Relation labels come from the method guide and are editorial. Unlabelled links are conceptual connections or comparison methods; the paper does not necessarily implement them.

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2025 / Experiment

Modeling Self-Heating in High-Power Single-Mode Phase-Coupled Linear VCSEL Arrays

V. Torrelli, M. C. G. Alasio, M. D’Alessandro … P. Debernardi (9 authors)

Models heat sources and the connection between temperature, thermal lensing and optical modes.

Summary & commentary : Modeling Self-Heating in High-Power Single-Mode Phase-Coupled Linear VCSEL Arrays