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Temporal localized states and square-waves in semiconductor micro-resonators with strong time-delayed feedback
Elias R Koch1, Thomas G Seidel1, Julien Javaloyes2
1Institute for Theoretical Physics, University of Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany.
Chaos (Woodbury, N.Y.)
|April 25, 2023
Summary
This study explores semiconductor quantum-well micro-cavity dynamics under optical feedback. Researchers found coexisting bright and dark temporal localized states, revealing complex optical behaviors.
Area of Science:
- Optics and Photonics
- Semiconductor Physics
- Nonlinear Dynamics
Background:
- Micro-cavities are crucial for lasers and optical devices.
- Understanding nonlinear dynamics in such systems is essential for advanced applications.
- Gires-Tournois resonators offer unique optical properties.
Purpose of the Study:
- To investigate the complex dynamics of a semiconductor quantum-well micro-cavity.
- To analyze the effects of time-delayed optical feedback and detuned optical injection.
- To identify and characterize temporal localized states within the system.
Main Methods:
- Utilizing a first-principle time-delay model for optical response.
- Analyzing multistable dark and bright temporal localized states.
- Performing a multiple time scale analysis in the good cavity limit.
Main Results:
- Disclosed sets of multistable dark and bright temporal localized states.
- Observed coexistence of these states on bistable homogeneous backgrounds.
- Identified square-wave patterns with specific periodicity under anti-resonant feedback.
Conclusions:
- The time-delay model accurately describes the observed complex dynamics.
- The system exhibits rich nonlinear phenomena, including temporal localized states.
- Further analysis in the good cavity limit validates the findings with a normal form model.
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