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 the pump current and linewidth enhancement factor.

中文翻译：

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通过同时进行折射率和泵浦调制来稳定广域半导体激光源

我们表明，通过在横向和纵向上同时在折射率和泵浦（增益-损耗）剖面上引入二维周期性调制，可以有效地稳定广域半导体放大器和激光器的发射。这样的折射率调制和增益损耗调制之间的相互作用有效地抑制了图案形成的不稳定性，从而导致了来自此类光源的高度稳定且明亮的窄输出光束。我们还根据泵电流和线宽增强因子来确定设备的稳定性能。