Effects of Optical Laser Injection in Multistable Erbium Fiber Lasers

Abstract

This work proposes an experimental scheme that injects the optical power of an array of three driven erbium-doped fiber lasers (EDFLs), which dynamics exhibit the coexistence of multiple attractors. The laser array is controlled by a driver EDFL by injecting its optical intensity to the three coupled driven EDFLs array to induce an attractor tracking of the driving lasers with the objective of obtaining one of the coexisting states with increasing output power. Some bifurcation diagrams of the laser peak intensities are constructed to find the multistability regions. Obtained results show that the intensity of the optical output signal of the driven systems is increased with respect to the initial individual response. The obtained results could have critical applications in repeaters of communications systems.