论文标题
单腔双色激光器通过光学反式时间对称性启用
Single-Cavity Bi-Color Laser Enabled by Optical Anti-Parity-Time Symmetry
论文作者
论文摘要
光学系统中量子启发的对称性的探索产生了有希望的物理学，并为开发具有外来功能的设备提供了肥沃的地面。我们建立在因增益和损失之间的空间和时间相互作用启用的反平性时间（APT）对称性上，我们在理论和数值上在单个微环谐振器中表现出具有空间时空模式的单个微环谐振器，沿其具有空位方向。与具有混合频率输出的常规多模式激光器相反，我们的激光在不同输出端口表现出稳定，消失，可调的双色发射。我们的基于适应性对称的激光器可能指出了一条新的途径，以实现紧凑的片上相干的多色光源。
The exploration of quantum-inspired symmetries in optical systems has spawned promising physics and provided fertile ground for developing devices exhibiting exotic functionalities. Founded on the anti-parity-time (APT) symmetry that is enabled by both spatial and temporal interplay between gain and loss, we demonstrate theoretically and numerically bi-color lasing in a single micro-ring resonator with spatiotemporal modulation along its azimuthal direction. In contrast to conventional multi-mode lasers that have mixed-frequency output, our laser exhibits stable, demultiplexed, tunable bi-color emission at different output ports. Our APT-symmetry-based laser may point out a new route for realizing compact on-chip coherent multi-color light sources.
