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arXiv 2211.08855physics.optics
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光子晶格中使用单个定制辅助波导的模式泵浦

Mode pumping in photonic lattices using a single tailored auxiliary waveguide

David Viedma, Jordi Mompart, Verònica Ahufinger

摘要:

在这项工作中,我们提出了一个完全通用的方法来泵浦光波导晶格的带隙拓扑模式,通过控制辅助波导的传播常数及其与主晶格的耦合。通过这种方式,我们可以将辅助波导上的单波导激发转换为晶格的特定模式。我们还证明了使用相同的方法在两个波导晶格之间转移超模的可能性。我们通过抽运和转移Su-Schrieffer-Heeger晶格的拓扑模来说明结果。对于这两种情况下,我们表明,纯度高于99%,可以实现与实验范围内的参数值。此外,我们还演示了如何使用该技术来泵浦晶格的体模,以实现波导晶格之间的模式转换。

英文摘要:

In this work, we propose a completely general method to pump the gapped topological modes of a lattice of optical waveguides by controlling the propagation constant of an auxiliary waveguide and its coupling to the main lattice. In this way, we can transform a single-waveguide excitation on the auxiliary waveguide into a specific mode of the lattice. We also demonstrate the possibility of transferring supermodes between two waveguide lattices using the same method. We illustrate the results by pumping and transferring the topological modes of Su-Schrieffer-Heeger lattices. For both scenarios, we show that purities above 99\% can be achieved with parameter values within experimental reach. Additionally, we demonstrate how the technique can be used to pump the bulk modes of the lattice for low number of waveguides or enable mode conversion between waveguide lattices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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