Optik Pub Date : 2021-06-21 , DOI: 10.1016/j.ijleo.2021.167473 Zhou Zheng , Xin Gui , Yinquan Yuan , Ai Zhou , Qingguo Du , Zhengying Li
A three suspended-cores fiber (TSF) is proposed. Different to the traditional three-bridge suspended-core fiber, TSF has three suspended-cores with an air-hole in the center. The mode coupling in TSF is analyzed based on the effective area, and the TSF are optimized to support LP01 mode at both C and L wavelength bands and the LP01 mode has only weak coupling between each fiber core. Due to asymmetry fiber core structure and mode compression, the simulated birefringence of the TSF is at 1.55 m. Despite the large refractive index difference between core and cladding, TSF can be tailored to support only LP and LP modes.
中文翻译:
高双折射三悬芯少模光纤的设计与表征
提出了一种三悬芯光纤 (TSF)。与传统的三桥悬芯光纤不同,TSF具有三个悬芯,中间有一个气孔。在TSF模耦合是基于所述有效面积进行分析,该TSF被优化以支持LP 01在两个C和L波段模式和LP 01模式具有每根纤维芯之间仅具有弱的耦合。由于不对称纤芯结构和模式压缩,TSF 的模拟双折射为 在 1.55 米。尽管纤芯和包层之间的折射率差异很大,但可以定制 TSF 以仅支持 LP 和LP 模式。