Synchronization and symmetry breaking in mutually coupled fiber lasers

Area of Science:

• Nonlinear dynamics
• Optical engineering
• Laser physics

Background:

• Coupled laser systems exhibit complex dynamics, including synchronization.
• Time delays are crucial in determining the behavior of coupled oscillators.
• Leader-follower phenomena are observed in various complex systems.

Purpose of the Study:

• To experimentally investigate synchronization and leader-follower dynamics in mutually coupled fiber ring lasers.
• To analyze the influence of time delays on emergent dynamics.
• To identify and characterize the roles of leader and follower in synchronized laser systems.

Main Methods:

• Experimental setup with two mutually coupled time-delayed fiber ring lasers.
• Utilized spatiotemporal representations of time series data.
• Analysis of synchronized dynamics to distinguish leader and follower behavior.

Main Results:

• Achieved and experimentally verified synchronization between the two fiber ring lasers.
• Observed the emergence of distinct leader-follower dynamics within the synchronized state.
• Spatiotemporal analysis successfully differentiated the roles of leader and follower.

Conclusions:

• Experimental evidence of leader-follower dynamics in time-delayed coupled fiber ring lasers.
• Spatiotemporal representations are effective for characterizing synchronized dynamics and roles.
• The study provides insights into complex behaviors in coupled optical systems.