Theoretical Analysis and Fabrication of a Nested Antiresonant Hollow-Core Fiber With low Tight Bend Loss

• DOI: 10.1109/jlt.2024.3382012
• Publication Date: 2024-03-26T20:23:41Z
• Authors: Jie Zhu; Caoyuan Wang; Yu Qin; Cong Xiong; Ye Wang; Zhende Zhai; Yichun Shen; Limin Xiao
• Keywords: Bend radius

The low tight bend-loss of antiresonant hollow-core fibers (AR-HCFs) is critical for many practical applications. In this paper, we provide an approximate analytical formula the nested AR-HCFs to predict its bend radius first time, deepening physical insight bending mechanism and allowing straightforward design AR-HCFs. We further carried out fabrication experiments characterized their performance. A loss 0.039 dB/m at 1550 nm under a tightest 1.8 cm achieved. Our theoretical experimental investigation in can useful strategies enhance applicability circumstances.