Nodeless Anti-resonant Hollow-core Fiber

Nested Anti-Resonant Nodeless Hollow-Core Fiber (NANF) is one of the most important advances in this category. By guiding the majority of optical power in air, NANF radically changes the mechanism of optical fiber signal transmission, interaction, and resource scaling. Despite their advantages, issues such as scattering loss and core-mode instability remain significant obstacles for their practical. Hollow core fibres (HCFs), particularly those ex-ploiting antiresonant guidance, have emerged as a transformative platform for optical communica-tions, offering a unique combination of low la-tency, minimal nonlinearities, and reduced ther-mal sensitivity compared to conventional all-glass. Hollow Core Nested Antiresonant Nodeless Fibre is a silica-based optical fiber that confines light in its air core using antiresonant reflection from nested, thin-walled capillaries. This design yields ultra-low attenuation, broad spectral bandwidth from ultraviolet to mid-infrared, and robust. We propose what we believe to be a novel low-loss, gap-filling, nested, anti-resonant nodeless fiber (GF-NANF) designed for ultraviolet (UV) applications. The GF-NANF achieves loss reduction by integrating nested tubes and gap-filling structures. By optimizing all key parameters through data analysis, we have achieved a CL of less than 0.