论文标题
多模光绝热二氧化硅玻璃亚微米锥度
Multimode optically adiabatic silica glass submicron taper
论文作者
论文摘要
通过锥形光纤制造的二氧化硅纳米纤维引起了极大的兴趣，作为高效轻度相互作用的最终平台。虽然先前证明的应用仅依赖于仅基本模式的低损失传输，但绝热地传输多种模式的多模台式的实施仍然非常具有挑战性，阻碍了它们在多模型非线性光学上的各种新兴应用中的使用。在这里，我们报告了多模次龙头的第一个实现，该磁台允许在纤维逐渐变细之前引入传统光纤的深湿蚀刻，允许在包括LP02模式在内的多个高阶模式的绝热传播。此外，作为一种关键应用，我们展示了“基本到基础”的全纤维第三次谐波一代，其转化效率很高。我们的工作为超高效率多模型非线性和量子光学元件铺平了道路，从而促进了多模式制度中的非经典光发射，多模词孤子相互作用和光子量子门，以及对evaneScent-Field诱导的原子和纳米聚会的evaneScent-Field诱导的光学捕获电位的操纵。
Silica nanofibers fabricated by tapering optical fibers have attracted considerable interest as an ultimate platform for high-efficiency light-matter interactions. While previously demonstrated applications relied exclusively on the low-loss transmission of only the fundamental mode, the implementation of multimode tapers that adiabatically transmit several modes has remained very challenging, hindering their use in various emerging applications in multimode nonlinear optics and quantum optics. Here, we report the first realization of multimode submicron tapers that permit the simultaneous adiabatic transmission of multiple higher-order modes including the LP02 mode, through introducing deep wet-etching of conventional fiber before fiber tapering. Furthermore, as a critical application, we demonstrate 'fundamental-to-fundamental' all-fiber third-harmonic generation with high conversion efficiencies. Our work paves the way for ultrahigh-efficiency multimode nonlinear and quantum optics, facilitating nonclassical light generation in the multimode regime, multimode soliton interactions and photonic quantum gates, and manipulation of the evanescent-field-induced optical trapping potentials of atoms and nanoparticles.
