Dynamical properties of two-dimensional microcavity semiconductor lasers

我们实验和数值研究了二维（2D）微腔半导体激光器的各种几何形状。结果表明：(1)在全混沌微腔激光器中，由于激光模式之间的锁频相互作用，可以实现稳定的单波长激光；(2)设计并制作了具有长周期轨道的二维外腔结构。通过控制由外腔引起的光反馈，可以产生快速混沌输出。（iii）此外，我们研究了光宽带噪声驱动激光的相位动力学，发现噪声可以诱导激光相位同步。

We experimentally and numerically investigated various geometries of two-dimensional (2D) microcavity semiconductor lasers. The obtained results are summarized as follows: (i) In fully-chaotic microcavity lasers, stable single-wavelength lasing can be achieved owing to frequency-locking interaction among the lasing modes (ii) A 2D external cavity structure with a long-periodic orbit was designed and fabricated. Fast chaotic output can be generated by controlling the optical feedback caused by the external cavity. (iii) Moreover, we investigated the phase dynamics of lasers driven by optical broadband noise, and we revealed that the noise can induce synchronization in the laser phases.