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Positive and negative curvatures nested in an antiresonant hollow-core fiber

Hasan, Md. Imran; Akhmediev, Nail; Chang, Wonkeun


We propose a negative curvature hollow-core fiber that has a nested elliptical element in the antiresonant tubes. The additional elliptical element effectively adds two curvatures, namely, a positive and a negative curvature. Our numerical study shows that it enhances the confinement of the light in the core. Moreover, the nested elements provided an extra degree of freedom that can be exploited to suppress higher-order modes through the change of the ellipticity. The resulting low confinement...[Show more]

CollectionsANU Research Publications
Date published: 2017-02-06
Type: Journal article
Source: Optics Letters
DOI: 10.1364/OL.42.000703
Access Rights: Open Access


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