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arXiv · 1801.03878

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

W. W. Ahmed·S. Kumar·J. Medina·M. Botey·R. Herrero·K. Staliunas
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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.

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W. W. Ahmed, S. Kumar, J. Medina, M. Botey, R. Herrero, K. Staliunas. 2018-02-21. Stabilization of Broad Area Semiconductor Laser sources by simultaneous index and pump modulations. https://doi.org/10.1364/ol.43.002511

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