Birefringent anti-resonant hollow-core fiber
Abstract
Hollow-core fibers have demonstrated record performance in applications such as high-power pulse delivery, quantum computing, and sensing. However, their routine use is yet to become reality. A major obstacle is the ability to maintain the polarization state of light over a broad range of wavelengths, while also ensuring low attenuation and single-mode guidance. Here we simulated, fabricated and characterized a single-mode polarization-maintaining anti-resonant hollow-core fiber. The birefringence was achieved by introducing resonators of different thicknesses, thereby creating reduced symmetry in the structure. The measured group birefringence of 4.4x10-5 at 1550 nm is in good agreement with the calculated group birefringence from the simulations. This corresponds to a phase birefringence of 2.5x10-5 at 1550 nm. The measured loss of the fiber was 0.46 dB/m at 1550 nm. With its simple structure, low loss, and broadband operation this polarization-maintaining anti-resonant hollow-core fiber is a serious contender for applications in gas-based nonlinear optics and communications.
Keywords
Cite
@article{arxiv.1910.01906,
title = {Birefringent anti-resonant hollow-core fiber},
author = {S. Yerolatsitis and R. Shurvinton and P. Song and Y. Zhang and J. A. Francis-Jones and K. R. Rusimova},
journal= {arXiv preprint arXiv:1910.01906},
year = {2020}
}