In HCF light can travel at near vacuum speeds for ultimate low latency transmission, and non-linear effects can be reduced by 5 orders of magnitude due to the low interaction of light with the glass.

Guiding light in a hollow core has dramatic advantages when compared to conventional all-solid fibers for many applications. Light confinement is provided by a precise geometric cladding which surrounds the core and is typically composed of air regions defined by silica membranes. Hollow core microstructured fibers (HCF) guide light in an air core. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Starting from high precision preforms the model predicts that it could be possible to draw 100 km of fiber from a single meter of preform. We discover that the aspect ratio of the capillaries used in the preform has a direct effect on the uniformity of drawn fibers. We then use the model to explore the tolerance of the draw process to unavoidable structural variations within the preform, and to study feasibility and limiting phenomena of increasing the produced yield. We identify a dynamic within the draw process that can lead to a premature and irreversible contact between neighboring capillaries inside the hot zone, and describe mitigating strategies. The model was validated against two different experimental fiber draws and very good agreement was found. We present the first model that can recreate tubular anti-resonant hollow core fiber draws, and accurately predict the draw parameters and geometry of the fiber. The fabrication of hollow core microstructured fibers is significantly more complex than solid fibers due to the necessity to control the hollow microstructure with high precision during the draw. Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.

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