Hofmann Johannes, Scheibinger Ramona, Schmidt Markus A
Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany.
Otto Schott Institute of Materials Research (OSIM), Friedrich-Schiller-University Jena, Fraunhoferstr. 6, 07743, Jena, Germany.
Sci Rep. 2024 Oct 13;14(1):23947. doi: 10.1038/s41598-024-75249-9.
The generation of tailored supercontinua is essential for studying ultrafast light-matter interactions and for a variety of practical applications requiring broadband light. Liquid-core fibers (LCFs) have emerged as an innovative nonlinear photonic platform, demonstrating high efficiency in nonlinear frequency conversion. In this study, we showcase that LCFs provide a stable platform for ultrafast supercontinuum generation in a selected higher-order vector mode at . Specifically, we demonstrate soliton fission and double-dispersive wave generation using a radially polarized mode in a -silica liquid-core fiber. The experiments were performed in a temperature-controlled laboratory, showing excellent stability with no evidence of fiber degradation, material degradation, or drift-induced changes in mode excitation over extended periods under standard environmental conditions. Our results confirm that liquid-core fibers are a reliable platform for nonlinear photonics, suitable for applications such as computationally tailored supercontinuum generation, single pulse spxectroscopy, and tailored light sources, all of which rely on consistent and stable nonlinear frequency conversion.
生成定制的超连续谱对于研究超快光与物质相互作用以及各种需要宽带光的实际应用至关重要。液芯光纤（LCFs）已成为一种创新的非线性光子平台，在非线性频率转换方面表现出高效率。在本研究中，我们展示了液芯光纤为在选定的高阶矢量模式下产生超快超连续谱提供了一个稳定的平台。具体而言，我们在二氧化硅液芯光纤中利用径向偏振模式演示了孤子分裂和双色散波产生。实验在温度控制的实验室中进行，在标准环境条件下长时间显示出优异的稳定性，没有光纤退化、材料退化或模式激发因漂移引起变化的迹象。我们的结果证实，液芯光纤是用于非线性光子学的可靠平台，适用于诸如计算定制超连续谱生成、单脉冲光谱学和定制光源等应用，所有这些应用都依赖于一致且稳定的非线性频率转换。
