Coupling-Dependent Switching Between Synchronization Regimes in Feedback Time Delays Laser System

TL;DR

This paper investigates how varying coupling strengths in a feedback laser system can induce transitions between in-phase and anti-phase synchronization regimes, with implications for controlling disease spread models.

Contribution

It introduces a coupled laser model demonstrating coupling-dependent switching between synchronization regimes, analogous to disease spread dynamics.

Findings

Transition from in-phase to anti-phase synchronization depending on coupling rates

Coupling modulation can control synchronization regimes

Insights applicable to epidemic control strategies

Abstract

We study a model for two lasers that are mutually coupled opto-electronically by modulating the pump of one laser with the intensity deviations from the steady-state output of the other. Such a model is analogous to the equations describing the spread of certain diseases such as dengue epidemics in human populations coupled by migration, transportation, etc. In this report we consider the possibility of both in-phase (complete) and anti-phase (inverse) synchronization between the above-mentioned laser models. Depending on the coupling rates between the systems a transition from the in-phase (complete) synchronization to the anti-phase (inverse) synchronization might occur. The results are important for the disruption of the spread of the certain infectious diseases in human populations.