Related Experiment Video
Updated: Aug 23, 2025
10:52
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
9.8K
Extreme events in two laterally-coupled semiconductor lasers.
Optics Express
|October 27, 2022
Summary
Extreme events resembling rogue waves (RWs) were observed in chaotic semiconductor laser arrays. These events, originating from deterministic nonlinearities, can be predicted and their occurrence tuned by adjusting system parameters.
Area of Science:
- Nonlinear dynamics
- Optics and photonics
- Complex systems
Background:
- Rogue waves (RWs) are rare, extreme wave events studied in various natural systems.
- Understanding RW formation and prediction is crucial for many scientific fields.
Purpose of the Study:
- To numerically demonstrate extreme events (EEs) in chaotic regimes of a two-element coupled semiconductor laser array.
- To characterize these EEs and investigate their origin and predictability.
Main Methods:
- Coupled-mode theory for system description.
- Probability distribution analysis to identify RW-type features (non-Gaussian).
- 0-1 test for chaos to confirm deterministic nonlinearities.
Main Results:
- First-time observation of EEs in chaotic semiconductor laser arrays.
- EEs exhibit non-Gaussian intensity pulse distributions, characteristic of RWs.
- EEs originate from deterministic nonlinearities and can be predicted with significant anticipation time.
Conclusions:
- Coupled semiconductor laser arrays offer a novel platform for studying EEs.
- EE occurrence probability is tunable via coupling parameters, waveguide structure, and pump level.
- This research opens new avenues for investigating EEs in integrated optical systems.
