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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
Wang, Yuxi
Chang, Wonkeun
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.
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.
ISSN: 1094-4087
DOI: 10.1364/OE.400267
DOI (Related Dataset): 10.21979/N9/CZXIP8
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 Optical Society of America under the terms of the OSA 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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