SGER: Microstructured Tellurite Fibers Produced by Extrusion for Nonlinear Optical Applications

在这个项目中，我们利用碲酸盐玻璃的上级光学和化学性质，使用挤出法生产微结构光纤。 挤出是用于制造由软玻璃（即具有低熔融温度）组成的纤维的非常通用的技术。这将有助于通过简单地改变模具来相对容易地探索几种不同的光学微结构设计。 对几种新型光学微结构的非线性光学特性（非线性折射率、受激拉曼散射和四波混频）进行了表征。 这项工作的成果将是确定提供光的严格限制（最高光密度和更高的非线性）和平坦色散（非线性光学过程中相位匹配所必需的）的关键特征。 在这个项目中，我们正在探索一种新的方法来制造新型光纤挤出。 由于其微观结构，这些光纤具有独特的（非线性）光学特性，可用于从医学成像到光通信的应用。 挤出是一种用于形成金属的公知技术，其将被应用于软玻璃以制造这些新型纤维。

In this project, we are taking advantage of the superior optical and chemical properties of tellurite glasses to produce microstructured fibers using extrusion. Extrusion is a very versatile technique for the fabrication of fibers composed of soft glasses, i.e. with low melting temperatures. It will facilitate a relatively easy exploration of several different optical microstructure design simply by changing the die. The nonlinear optical properties of several new optical microstructures (nonlinear index, stimulated Raman scattering and Four Wave Mixing) will be characterized. The outcome of the work will be the determination of the key features that provide a tight confinement of the light, (for highest optical densities and higher nonlinearities) and a flat dispersion (necessary for phase matching in nonlinear optical processes). In this project, we are exploring a new method to fabricate novel optical fibers with extrusion. Because of their microstructure, these fibers possess unique (nonlinear) optical properties that can be used in applications ranging from medical imaging to optical communications. Extrusion is a well known technique for the forming of metals which will be applied to soft glasses for the fabrication of these novel fibers.