scholarly journals Bistable and coexisting attractors in current modulated edge emitting semiconductor laser: control and microcontroller-based design

2021 ◽  
Vol 53 (6) ◽  
Author(s):  
Nasr Saeed ◽  
Serdar Çiçek ◽  
André Cheage Chamgoué ◽  
Sifeu Takougang Kingni ◽  
Zhouchao Wei
Keyword(s):  
Semiconductor Laser ◽  
Coexisting Attractors ◽  
Laser Control

Bistable and Coexisting Attractors in Current Modulated Edge Emitting Semiconductor Laser: Control and Microcontroller-Based Design

2021 ◽  
Author(s):  
Nasr Saeed ◽  
Serdar Çiçek ◽  
André Cheage Chamgoué ◽  
Sifeu Takougang Kingni ◽  
Zhouchao Wei
Keyword(s):  
Numerical Analysis ◽  
Semiconductor Laser ◽  
Limit Cycle ◽  
Chaotic Behavior ◽  
Equilibrium Points ◽  
Period Doubling ◽  
Chaotic Attractors ◽  
Coexisting Attractors ◽  
Laser Control ◽  
The Stability

Abstract This paper reports on the numerical analysis, control of coexisting attractors and microcontroller-based design of current modulated edge emitting semiconductor laser (CMEESL). The stability of equilibrium points of solitary edge emitting semiconductor laser found is investigated. By varying the amplitude of modulation current density, CMEESL displays periodic behaviors, period-doubling to chaotic behavior, bistability and coexistence between limit cycle and chaotic attractors. The coexistence between chaotic and limit cycle attractors is destroyed and controlled to a desired monostable trajectory by means of the linear augmentation method. In addition, a microcontroller-based circuit is also designed to indicate that CMEESL can be used in real applications. Microcontroller-based circuit outputs and numerical analysis results confirm each other.

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