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We show that the emission of broad area semiconductor amplifiers and laserscan be efficiently stabilized by introducing, two-dimensional periodicmodulations simultaneously on both the refractive index and the pump(gain-loss) profiles, in the transverse and longitudinal directions. Theinterplay between such index and gain-loss modulations efficiently suppressesthe pattern forming instabilities, leading to highly stable and bright narrowoutput beams from such sources. We also determine the stabilization performanceof the device as a function of pump current and linewidth enhancement factor.

Stabilization of Broad Area Semiconductor Laser sources by simultaneous index and pump modulations