Stabilization of class-B broad-area lasers emission by external optical injection

TL;DR

This paper theoretically investigates how external optical injection can stabilize the complex spatio-temporal dynamics of class-B broad-area lasers by suppressing transverse instabilities and relaxation oscillations.

Contribution

It introduces a novel approach demonstrating that external optical injection effectively stabilizes broad-area laser emission, addressing intrinsic instabilities.

Findings

Optical injection suppresses transverse instabilities.

Stabilization linked to relaxation oscillation suppression.

Enhances understanding of laser dynamics control.

Abstract

We theoretically examine the effect of external optical injection on the spatio-temporal dynamics of class-B broad-area lasers. We demonstrate that optical injection can efficiently stabilize the intrinsic transverse instabilities in such lasers associated with both the boundaries of the pumping area and with the bulk nonlinearities of the active medium. Stabilizing action of optical injection is shown to be closely related to the suppression of inherent relaxation oscillations behavior.