Document Type

Article

Publication Title

IEEE Photonics Journal

Abstract

In this paper, to the best of our knowledge, a new
type of hollow-core anti-resonant fiber (HC-ARF) design using
hybrid silica/high-index material (HIM) cladding is presented
for single-polarization, high-birefringence, and endlessly single-
mode operation at 2 μm wavelength. We show that the inclusion
of a HIM layer in the cladding allows strong suppression of
𝑥−polarization, while maintaining low propagation loss and
single-mode propagation for 𝑦−polarization. The optimized HC-
ARF design includes a combination of low propagation loss,
high-birefringence, and polarization-extinction ratio (PER) or
loss ratio of 0.02 dB/m, 1.2×10−4, and >550 respectively, while the
loss of the 𝑥−polarization is >20 dB/m. The proposed fiber may
also be coiled to small bend radii while maintaining low bend-loss
of ≈0.01–0.1 dB/m, and can potentially be used as polarization
filter based on the different gap separations and bend conditions.

DOI

10.1109/JPHOT.2024.3379478

Publication Date

6-2024

Comments

©2024 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

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