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Updated: May 9, 2026
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Published on: July 12, 2017
Extreme intensity pulses in a semiconductor laser with a short external cavity
Jose A Reinoso1, Jordi Zamora-Munt, Cristina Masoller
1Departamento de Fisica Fundamental, Universidad Nacional de Educacion a Distancia (UNED), Paseo Senda del Rey 9, E-28040 Madrid, Spain. jmaparicio@bec.uned.es
Summary
Extreme pulses in semiconductor lasers with optical feedback were studied. Researchers found these events are robust against noise and exhibit intermittency and hysteresis.
Area of Science:
- Nonlinear dynamics
- Semiconductor laser physics
- Optical engineering
Background:
- Semiconductor lasers are crucial for modern optics.
- Optical feedback can induce complex dynamics, including extreme events.
- Understanding these dynamics is key for laser stability and applications.
Purpose of the Study:
- To numerically investigate extreme pulse generation in short-cavity semiconductor lasers with optical feedback.
- To characterize the underlying bifurcation mechanisms and the influence of noise.
- To analyze phenomena like intermittency and hysteresis in this system.
Main Methods:
- Numerical simulations of a semiconductor laser model with optical feedback.
- Analysis of bifurcation scenarios leading to extreme pulse events.
- Investigation of noise effects on pulse dynamics and system stability.
Main Results:
- Identified extreme pulse events in the short-cavity regime.
- Characterized the bifurcation pathway to extreme pulse generation.
- Demonstrated intermittency and hysteresis associated with extreme pulses.
- Showed the robustness of this scenario under the influence of noise.
Conclusions:
- Extreme pulse events in short-cavity semiconductor lasers are a robust phenomenon.
- Intermittency and hysteresis are key features of the bifurcation scenario.
- Noise does not disrupt the occurrence of extreme pulses, highlighting system resilience.
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