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Cluster synchronization in symmetric VCSELs networks with variable-polarization optical feedback.
Optics Express
|May 3, 2018
Summary
This study shows that symmetric vertical-cavity surface-emitting lasers (VCSELs) networks can achieve cluster synchronization due to their topology. The polarizer angle in optical feedback is crucial for forming these synchronized VCSEL clusters.
Area of Science:
- Optics and Photonics
- Nonlinear Dynamics
- Complex Systems
Background:
- Vertical-cavity surface-emitting lasers (VCSELs) are fundamental components in modern optical communication and computing systems.
- Understanding and controlling synchronization in networks of coupled lasers is critical for advanced applications.
- Variable-polarization optical feedback (VPOF) introduces complex dynamics in laser systems.
Purpose of the Study:
- To theoretically investigate cluster synchronization in mutually coupled VCSEL networks with symmetric structures.
- To analyze the role of network topology and optical feedback parameters on synchronization.
- To identify key factors influencing the stability and formation of synchronized clusters.
Main Methods:
- Theoretical modeling of mutually coupled VCSEL networks.
- Analysis of network topology and its impact on synchronization.
- Investigation of variable-polarization optical feedback (VPOF) effects.
- Numerical simulations to explore parameter influences.
Main Results:
- Zero-lag synchronization achieved within VCSEL clusters due to intrinsic network symmetry.
- Identified key parameters affecting the stability of cluster synchronization.
- Demonstrated the critical role of the polarizer angle in VPOF for cluster formation.
- Symmetric network topology is a primary driver for synchronization.
Conclusions:
- Symmetric VCSEL networks can robustly achieve cluster synchronization.
- Network topology symmetry is sufficient for zero-lag synchronization.
- Optical feedback, specifically the polarizer angle, significantly impacts cluster formation and stability.
- This research provides insights into controlling synchronization in complex laser networks.
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