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Heteroclinic dynamics of coupled semiconductor lasers with optoelectronic feedback
Optics Letters
|November 15, 2016
Summary
Researchers created a photonic network of coupled semiconductor lasers to model competitive population dynamics using Generalized Lotka-Volterra (GLV) equations. Inhibitory coupling is key for achieving specific laser amplitude oscillations, mirroring brain activity models.
Area of Science:
- Nonlinear dynamics
- Optoelectronics
- Network science
Background:
- Generalized Lotka-Volterra (GLV) equations model competitive dynamics in complex systems.
- Semiconductor lasers exhibit rich dynamics influenced by their interactions.
Purpose of the Study:
- To realize a Generalized Lotka-Volterra (GLV) model using a photonic network of optoelectronically cross-coupled semiconductor lasers.
- To investigate the influence of asymmetric coupling strength and frequency detuning on laser dynamics.
Main Methods:
- Constructed a photonic network with three optoelectronically cross-coupled semiconductor lasers.
- Analyzed the dynamics arising from the interaction of intensity, carrier inversion rates, and phases.
- Studied the effects of varying coupling strengths and frequency detunings.
Main Results:
- Demonstrated that inhibitory asymmetric coupling is essential for achieving consecutive amplitude oscillations in laser nodes.
- Observed complex dynamics resulting from the interplay of laser parameters.
Conclusions:
- A photonic network of coupled semiconductor lasers can effectively emulate GLV dynamics.
- Inhibitory coupling is a critical factor for specific oscillatory behaviors, with potential implications for modeling cognitive activities.
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