Spatial control of localized oscillations in arrays of coupled laser dimers.,Physical Review E

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Spatial control of localized oscillations in arrays of coupled laser dimers.
Physical Review E ( IF 2.2 ) Pub Date : 2020-07-06 , DOI: 10.1103/physreve.102.012201
Joniald Shena ₁ , Yannis Kominis ₂ , Anastasios Bountis ₃ , Vassilios Kovanis ₄

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Arrays of coupled semiconductor lasers are systems possessing radically complex dynamics that makes them useful for numerous applications in beam forming and beam shaping. In this work, we investigate the spatial controllability of oscillation amplitudes in an array of coupled photonic dimers, each consisting of two semiconductor lasers driven by differential pumping rates. We consider parameter values for which each dimer's stable phase-locked state has become unstable through a Hopf bifurcation and we show that, by assigning appropriate pumping rate values to each dimer, high-amplitude oscillations coexist with negligibly low-amplitude oscillations. The spatial profile of the amplitude of oscillations across the array can be dynamically controlled by appropriate pumping rate values in each dimer. This feature is shown to be quite robust, even for random detuning between the lasers, and suggests a mechanism for dynamically reconfigurable production of a large diversity of spatial profiles of laser amplitude oscillations.

中文翻译：

耦合激光二聚体阵列中的局部振荡的空间控制。

耦合半导体激光器的阵列是具有极其复杂的动力学的系统，这使得它们可用于光束形成和光束整形的众多应用。在这项工作中，我们研究了耦合光子二聚体阵列中振荡幅度的空间可控性，每个光子二聚体由两个由差分泵浦速率驱动的半导体激光器组成。我们考虑了通过Hopf分叉使每个二聚体的稳定锁相状态变得不稳定的参数值，并且我们发现，通过为每个二聚体分配适当的抽运速率值，高振幅振荡与可忽略不计的低振幅振荡共存。阵列中振荡幅度的空间分布可以通过每个二聚体中的适当泵浦率值来动态控制。该功能非常强大，

更新日期：2020-07-06

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