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Proceedings Paper

Asymptotic analysis of Bragg fibers and dielectric coaxial fibers
Author(s): Yong Xu; Amnon Yariv
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Paper Abstract

Using an asymptotic matrix formalism, we analyze the guided modes of Bragg fibers and the dielectric coaxial fibers. In the asymptotic limit, the Bloch theorem can be applied to describe the optical field within the cladding layers, while the core region field is described by the exact solutions of Maxwell equations. From the asymptotic analysis, we derive an approximate expression for the radiation loss of Bragg fibers and dielectric coaxial fibers and give the number of Bragg pairs required to achieve 0.2dB/km radiation loss. The dispersions of the guided modes of Bragg fibers and dielectric coaxial fibers are calculated using both the asymptotic approach and the finite difference time domain method. The results obtained from these two approaches are shown to have excellent agreement. We use asymptotic analysis to calculate the dispersion parameter D of the guided dielectric coaxial fiber modes, which is found to be much larger than that of the conventional telecom fibers.

Paper Details

Date Published: 30 July 2001
PDF: 15 pages
Proc. SPIE 4532, Active and Passive Optical Components for WDM Communication, (30 July 2001); doi: 10.1117/12.436012
Show Author Affiliations
Yong Xu, California Institute of Technology (United States)
Amnon Yariv, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 4532:
Active and Passive Optical Components for WDM Communication
Achyut Kumar Dutta; Abdul Ahad Sami Awwal; Niloy K. Dutta; Katsunari Okamoto, Editor(s)

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