CNR-Istituto Nazionale di Ottica, largo E. Fermi 6, I-50125 Firenze, Italy.
CNR-Istituto dei Sistemi Complessi, via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy.
Phys Rev E. 2017 May;95(5-1):052204. doi: 10.1103/PhysRevE.95.052204. Epub 2017 May 4.
We investigate the formation of localized domains through front pinning in a periodically forced, bistable semiconductor laser with long-delayed optoelectronic feedback. At difference with 1D spatially extended systems, the transition from the pinning to the propagation regime occurs via two separated bifurcations, each corresponding to the unpinning of one of the fronts surrounding the localized domain. The bifurcation splitting is systematically explored, unveiling the crucial role played by the forcing frequency. The experimental results are reproduced and interpreted by means of a prototypical model of our system.
我们研究了通过在具有长延迟光电反馈的周期性受迫双稳半导体激光器中的前沿钉扎形成局域域。与一维空间扩展系统不同，从钉扎到传播状态的转变是通过两个分离的分岔来实现的，每个分岔对应于围绕局域域的前沿之一的解钉扎。系统地研究了分岔分裂，揭示了强迫频率所起的关键作用。通过我们系统的原型模型来再现和解释实验结果。
