Bend Loss Properties of the Octagonal-core and Nodeless Large-mode-area Anti-resonant Hollow-core Fibers

Yelistratova, Elizaveta; Leonov, Stanislav O.; Demidov, Vladimir V.; Ananyev, Vladislav; Alagashev, G. K.; Pryarnikov, A. D.

doi:10.1109/piers-spring46901.2019.9017623

Cited by 2 publications

(1 citation statement)

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“…The ratio of cladding tube diameter to the core diameter plays a major role in deciding the bending loss. When this ratio is not chosen carefully, it can lead to peaks at the resonant wavelengths at certain bend radii [35]. The bending loss is obtained by selecting the bent waveguide option from the finite difference eigenmode (FDE) solver which solves modes of the form E j (ρ, y) e iβjθ in the cylindrical coordinate system.…”

Section: Bend Loss Characteristicsmentioning

confidence: 99%

Designing hollow core nested anti-resonant fiber with ultra-low loss using finite difference eigen mode solver

Chatterjee

Kaushalram

Suchita

et al. 2022

J. Opt.

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We report an optimized design of six-ring nodeless antiresonant fiber (NARF) in both single and nested ring configurations in the visible wavelength regime. Proposed fibers exhibit a record low loss of 6.7 × 10^(−4) dB/km at 630 nm with less than 1 dB/km over a broad 330 nm bandwidth, achieved by the incorporation and optimization of nested elements in the primary cladding tubes. A comprehensive analysis, utilizing finite difference algorithm, to study the role of structural parameters of the hollow core fiber viz. tube thickness and gaps between the tubes on the loss spectrum is also presented. A comparative analysis of NARF designs using tube thickness in different anti-resonant bands is also included. The bend robustness, polarization analysis, dispersion, and fabrication tolerances are investigated. Proposed low-loss fibers in the visible wavelength regime can drastically bring down the cost and complexity of quantum communication systems.

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Section: Bend Loss Characteristicsmentioning

confidence: 99%