Low-Loss, High Single-Polarization Hollow-Core Anti-Resonant Fiber Incorporating Double-Layer Nested Tubes and Resonant Tubes
Abstract
This paper proposes a low-loss, high single-polarization hollow-core anti-resonant fiber (HC-ARF) with double-layer nested tubes and two resonant tubes. After structural parameter optimization, the fiber achieves a confinement loss of 6.63 dB/km and a polarization extinction ratio of 8414 in the 1.986–2.002 μm band. Regarding bending resistance, when bent along the x-direction with a bending radius larger than 4.5 cm, the y-pol mode maintains a loss below 10 dB/km and a polarization extinction ratio (PER) over 100; when bent along the y-direction with a radius exceeding 4 cm, the PER remains above 100, confirming good bending tolerance.
Fields of Study & Subjects
Photonic Crystal and Fiber Optics
Advanced Fiber Optic Sensors
Photonic and Optical Devices
Publication details
- Journal / source
- Fiber & Integrated Optics
- Publisher
- Informa UK Limited
- Volume
- 45
- Issue
- 1
- Pages
- 19–34
- Publication date
- 2 January 2026
- Language
- EN