论文标题
具有可调相锁定的非热激光阵列
Non-Hermitian laser arrays with tunable phase locking
论文作者
论文摘要
灵感来自非热光谱工程和非铁皮皮肤效应的想法，提出了一种新型的设计，用于稳定的耦合激光阵列，并具有可调相位锁定和强大的超模板竞争抑制。我们考虑了具有不对称模式耦合的线性阵列，显示非铁皮皮肤效果，并表明，在两个边缘谐振器的复杂频率的适当剪裁下，激光阵列可以稳定地在单个扩展的超级模块中稳定发射，并具有可调的相位锁定，并且具有所有其他皮肤超级模型的强烈抑制。所提出的激光阵列设计对系统的结构缺陷和半导体激光阵列的典型动力不稳定性具有强大的鲁棒性。
Inspired by the idea of non-Hermitian spectral engineering and non-Hermitian skin effect, a novel design for stable emission of coupled laser arrays with tunable phase locking and strong supermode competition suppression is suggested. We consider a linear array of coupled resonators with asymmetric mode coupling displaying the non-Hermitian skin effect and show that, under suitable tailoring of complex frequencies of the two edge resonators, the laser array can stably emit in a single extended supermode with tunable phase locking and with strong suppression of all other skin supermodes. The proposed laser array design offers strong robustness against both structural imperfections of the system and dynamical instabilities typical of semiconductor laser arrays.
