Common-injection-induced isolated desynchronization in delay-coupled VCSELs networks with variable-polarization...

Area of Science:

• Nonlinear dynamics
• Complex networks
• Optoelectronics

Background:

• Vertical-cavity surface-emitting lasers (VCSELs) are crucial in optical communication.
• Synchronization phenomena in VCSEL networks are complex and sensitive to feedback.
• Understanding symmetry-breaking states like isolated desynchronization is key for network control.

Purpose of the Study:

• To investigate and induce cluster isolated desynchronization in delay-coupled VCSEL networks.
• To explore the impact of variable-polarization optical feedback (VPOF) on synchronization patterns.
• To demonstrate a novel method for controlling synchronization states.

Main Methods:

• Utilizing delay-coupled VCSEL networks with VPOF.
• Employing a common-signal injection approach with an auxiliary VCSEL.
• Systematically analyzing parameter influences on isolated desynchronization.

Main Results:

• Successfully induced cluster isolated desynchronization from cluster synchronization.
• Demonstrated the emergence of this state via common-signal injection.
• Investigated parameter dependencies and validated the scheme on a real-world network topology (Nepal power grid).

Conclusions:

• The common-signal injection method effectively controls synchronization patterns in VPOF-VCSELs networks.
• Isolated desynchronization can be controllably achieved in complex laser networks.
• This research provides new insights for managing synchronization in VCSEL networks.