Open AccessLow-loss coupling from single-mode solid-core fibers to anti-resonant hollow-core fibers by fiber tapering technique
Author(s) -
Wei Huang,
Yulong Cui,
Xieqian Li,
Zhaoying Zhou,
Zhixian Li,
Meng Wang,
Xiaoming Xi,
Zhilun Chen,
Zefeng Wang
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.037111
Subject(s) - tapering , materials science , coupling (piping) , fiber , core (optical fiber) , optics , graded index fiber , photonic crystal fiber , optical fiber , coupling loss , single mode optical fiber , mode volume , plastic optical fiber , polarization maintaining optical fiber , plastic clad silica fiber , fiber optic sensor , composite material , computer science , physics , computer graphics (images)
We demonstrate here for the first time, to the best of our knowledge, an effective method to achieve low-loss light coupling from solid-core fibers to anti-resonant hollow-core fibers (AR-HCFs) by fiber tapering technique. We establish the coupling models by beam propagation method (BPM), and the simulation results show that the coupling efficiency can be optimized by choosing a proper waist diameter of the tapered solid-core fiber. Two types of AR-HCFs have been tested experimentally, and the maximum light coupling efficiency is ∼91.4% at 1.06 µm and ∼90.2% at 1.57 µm for the ice-cream AR-HCF, and ∼83.7% at 1.57 µm for the node-less AR-HCF. This work provides a feasible low-loss light coupling scheme for AR-HCFs, which is very useful for implementing all fiber systems.