Chemnitz Mario, Junaid Saher, Walther Nico, Scheibinger Ramona, Schaarschmidt Kay, Kobelke Jens, Schmidt Markus A
Opt Lett. 2020 Jun 1;45(11):2985-2988. doi: 10.1364/OL.393089.
Accurate dispersion management is key for efficient nonlinear light generation. Here, we demonstrate that composite-liquid-core fibers-fibers with binary liquid mixtures as the core medium-allow for accurate and tunable control of dispersion, loss, and nonlinearity. Specifically, we show numerically that mixtures of organic and inorganic solvents in silica capillaries yield anomalous dispersion and reasonable nonlinearity at telecommunication wavelengths. This favorable operation domain is experimentally verified in various liquid systems through dispersion-sensitive supercontinuum generation, with all results being consistent with theoretical designs and simulations. Our results confirm that mixtures introduce a cost-effective means for liquid-core fiber design that allows for loss control, nonlinear response variation, and dispersion engineering.
精确的色散管理是高效产生非线性光的关键。在此，我们证明复合液芯光纤（即以二元液体混合物作为纤芯介质的光纤）能够实现对色散、损耗和非线性的精确且可调谐控制。具体而言，我们通过数值模拟表明，二氧化硅毛细管中有机和无机溶剂的混合物在电信波长下会产生反常色散和合理的非线性。通过色散敏感的超连续谱产生，在各种液体系统中对这一有利的工作区域进行了实验验证，所有结果均与理论设计和模拟一致。我们的结果证实，混合物为液芯光纤设计提供了一种经济高效的方法，可实现损耗控制、非线性响应变化和色散工程。
