Stabilization of Broad Area Semiconductor Laser sources by simultaneous index and pump modulations
arXiv:1801.03878 · doi:10.1364/OL.43.002511
Abstract
We show that the emission of broad area semiconductor amplifiers and lasers can be efficiently stabilized by introducing, two-dimensional periodic modulations simultaneously on both the refractive index and the pump (gain-loss) profiles, in the transverse and longitudinal directions. The interplay between such index and gain-loss modulations efficiently suppresses the pattern forming instabilities, leading to highly stable and bright narrow output beams from such sources. We also determine the stabilization performance of the device as a function of pump current and linewidth enhancement factor.
arXiv comment4 pages, 4 figures
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