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|Title:||Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers||Authors:||Deng, Ang
Md Imran Hasan
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2020||Source:||Deng, A., Md Imran Hasan, Wang, Y. & Chang, W. (2020). Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers. Optics Express, 28(19), 27974-27988. https://dx.doi.org/10.1364/OE.400267||Project:||2018-T1-001-048||Journal:||Optics Express||Abstract:||We numerically investigate the role of cladding geometries in two widely used anti-resonant hollow-core fiber designs with negative curvatures, the tubular negative-curvature fiber and ice-cream-cone negative-curvature fiber. The confinement loss governed by the inhibited coupling between the modes in the core and cladding is thoroughly examined systematically against the core-cladding curvature for both types. We show that, in addition to the mode-index mismatch, the mode-field overlap also plays a key role in determining the loss. Simultaneously, we find the ice-cream-cone negative-curvature fiber can exhibit better loss performance than the tubular design within a specific range of the curvature. This enhancement is achieved without sacrificing the transmission bandwidth and is relatively robust against the fabrication error.||URI:||https://hdl.handle.net/10356/157790||ISSN:||1094-4087||DOI:||10.1364/OE.400267||Rights:||© 2020 Optical Society of America under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for noncommercial purposes and appropriate attribution is maintained. All other rights are reserved.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Journal Articles|
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