Widely tunable and narrow-linewidth chip-scale lasers from near-ultraviolet to near-infrared wavelengths
Widely tunable and narrow-linewidth chip-scale lasers from near-ultraviolet to near-infrared wavelengths
复制标题
DOI：
10.1038/s41566-022-01120-w
复制
发表时间：
2022-12-23
期刊：
影响因子：
35
通讯作者：
Lipson, Michal
中科院分区：
文献类型：
--
作者：
Corato-Zanarella, Mateus;Gil-Molina, Andres;Lipson, Michal
可见光波段的宽调谐窄线宽激光器对于量子光学、光学钟、原子和分子物理等应用是必不可少的。目前，激光器是台式系统，这使得这些技术无法在研究实验室之外使用。在这里，我们展示了一个芯片级可见光激光器平台，使可调谐和窄线宽激光器从近紫外到近红外波长。使用微米级氮化硅谐振器和商业法布里-珀罗激光二极管，我们实现了粗调谐高达12.5 nm和模式跳变自由微调高达33.9 GHz的固有线宽下降到几千赫兹。此外，我们还展示了高达267 GHz mu s（-1）的微调速度，高达10 mW的光纤耦合功率和35 dB以上的典型边模抑制比。我们的芯片级激光器的这些规格以前只能使用大型最先进的台式激光系统来实现，使我们的激光器成为下一代可见光技术的强大工具。
Widely tunable and narrow-linewidth lasers at visible wavelengths are necessary for applications such as quantum optics, optical clocks and atomic and molecular physics. At present, the lasers are benchtop systems, which precludes these technologies from being used outside research laboratories. Here we demonstrate a chip-scale visible laser platform that enables tunable and narrow-linewidth lasers from near-ultraviolet to near-infrared wavelengths. Using micrometre-scale silicon nitride resonators and commercial Fabry-Perot laser diodes, we achieve coarse tuning up to 12.5 nm and mode-hop-free fine tuning up to 33.9 GHz with intrinsic linewidths down to a few kilohertz. In addition, we show fine-tuning speeds of up to 267 GHz mu s(-1), fibre-coupled powers of up to 10 mW and typical side-mode suppression ratios above 35 dB. These specifications of our chip-scale lasers have only been achieved previously using large state-of-the-art benchtop laser systems, making our lasers stand out as powerful tools for the next generation of visible-light technologies.