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Stabilization of broad-area semiconductor laser sources by simultaneous index and pump modulations

机译:通过同时索引和泵调制稳定宽面积半导体激光源

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摘要

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. (C) 2018 Optical Society of America
机译:我们表明,通过在横向和纵向上的折射率和泵(增益损耗)曲线上同时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。 这种索引和增益损耗调制之间的相互作用有效地抑制了模式形成的不稳定性,从而导致来自这种源的高度稳定和明亮的窄输出梁。 我们还根据泵电流和线宽增强因子确定设备的稳定性性能。 (c)2018年光学学会

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