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Design of Spectral Filters Based on Mode Coupling of Optical Fibers
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: Received: 19 January 2020 / Approved: 20 January 2020 / Online: 20 January 2020 (09:46:33 CET)
How to cite: Abouelfadl, A. A.; Alshehri, A. A. Design of Spectral Filters Based on Mode Coupling of Optical Fibers. Preprints 2020, 2020010222 Abouelfadl, A. A.; Alshehri, A. A. Design of Spectral Filters Based on Mode Coupling of Optical Fibers. Preprints 2020, 2020010222
Abstract
In this paper, design of optical spectral filters based on mode coupling of optical fibers is presented. The finite difference method is applied to find the dispersion characteristics of optical fiber coupler constructing from two fibers as a composite multi-dielectric waveguide with different cores but the same cladding. Also, the field distribution for both fibers as a separate and as a composite waveguide. The spectral characteristics of the filters are investigated depending on the coupling of two linear polarized modes LP01 and LP11. The dependence of the transmission coefficient on operating wavelengths is illustrated. Finally, the spectral bandwidth of filter as a function of the distance between the two cores is addressed.
Keywords
optical fibers; spectral filter; modes coupling; dispersion characteristics; composite waveguide; linear polarized modes
Subject
Engineering, Electrical and Electronic Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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