论文标题
注射锁定并通过外部腔中的衍射将大型VCSEL阵列的发射器耦合
Injection locking and coupling the emitters of large VCSEL arrays via diffraction in an external cavity
论文作者
论文摘要
光学耦合半导体激光器的网络对于基本研究和实现材料处理，照明和信息处理中的许多技术应用而具有很高的兴趣。尽管如此，迄今仍缺乏采用可扩展概念的大型元素的实验实现。在这里，我们在$ 5 \ times 5 $ face lattice Array via中介绍了垂直腔发射激光器的网络22。至关重要的是，阵列允许对每个激光泵电流进行单独控制，我们利用这些控制阵列将阵列对齐。通过外部空腔利用衍射耦合，将22个激光器相互注射锁定，此外，我们证明了它们同时锁定在外部注射激光器上。 VCSEL网络是对复杂系统实验研究的有前途的平台，并直接应用于光子神经网络。该概念的可伸缩性为包括更多个别激光器组成的系统打开了未来的可能性。
Networks of optically coupled semiconductor lasers are of high interest for fundamental investigations and for enabling numerous technological applications in material processing, lighting and information processing. Still, experimental realizations of large networks of such elements employing a scalable concepts have so far been been lacking. Here, we present a network 22 of the vertical-cavity surface-emitting lasers in a $5 \times 5$ square lattice array via. Crucially, the array allows individual control over each laser's pump current, which we leverage spectrally align the array. Leveraging diffractive coupling through an external cavity, 22 lasers are mutually injection locked, and, furthermore, we demonstrate their simultaneous phase locking to an external injection laser. The VCSEL network is a promising platform for experimental investigations of complex systems and has direct applications as a photonic neural network. The scalability of the concept opens future possibilities for systems comprising many more individual lasers.
