Exceptional Points in Two Dissimilar Coupled Diode Lasers

TL;DR

This paper investigates the presence and characteristics of Exceptional Points in asymmetric coupled diode lasers, highlighting their locations relative to stability and bifurcation points under various operational conditions.

Contribution

It identifies and maps the occurrence of Exceptional Points in asymmetric diode laser systems considering detuning and pumping differences, providing insights into their stability and bifurcation behavior.

Findings

Exceptional Points are abundant in asymmetric coupled diode lasers.

Locations of Exceptional Points are mapped relative to stability domains.

The study relates Exceptional Points to Hopf bifurcations and experimental parameters.

Abstract

We show the abundance of Exceptional Points in the generic asymmetric configuration of two coupled diode lasers, under nonzero optical detuning and differential pumping. We pinpoint the location of these points with respect to the stability domains and the Hopf bifurcation points, in the solution space as well as in the space of experimentally controlled parameters.