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Appl. Sci. 2017, 7(1), 44; doi:10.3390/app7010044

Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods

1
Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan
2
Department of Electronic Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Boris Malomed
Received: 6 December 2016 / Revised: 27 December 2016 / Accepted: 28 December 2016 / Published: 30 December 2016
(This article belongs to the Special Issue Guided-Wave Optics)
View Full-Text   |   Download PDF [11460 KB, uploaded 30 December 2016]   |  

Abstract

This study designed a novel high-performance fiber Bragg grating (FBG) optical add/drop multiplexers (OADMs) by referring to current numerical simulation methods. The proposed FBG-OADM comprises two single-mode fibers placed side by side. Both optical fibers contained an FBG featuring identical parameters and the same geometric structure. Furthermore, it fulfills the full width at half maximum (FWHM) requirement for dense wavelength-division multiplexers (DWDMs) according to the International Telecommunication Union (i.e., FWHM < 0.4 nm). Of all related numerical calculation methods, the combination of the finite element method (FEM) and eigenmode expansion method (EEM), as a focus in this study, is the only one suitable for researching and designing large-scale components. To enhance the accuracy and computational performance, this study used numerical methods—namely, the object meshing method, the boundary meshing method, the perfectly matched layer, and the perfectly reflecting boundary—to simulate the proposed FBG-OADM. The simulation results showed that the novel FBG-OADM exhibited a −3 dB bandwidth of 0.0375 nm. In addition, analysis of the spectrum revealed that the drop port achieved the power output of 0 dB at an operating wavelength of 1550 nm. View Full-Text
Keywords: fiber bragg grating; optical add-drop multiplexer; finite element method; eigenmode expansion method; perfectly matched layer; perfectly reflection boundary; object meshing method; boundary meshing method fiber bragg grating; optical add-drop multiplexer; finite element method; eigenmode expansion method; perfectly matched layer; perfectly reflection boundary; object meshing method; boundary meshing method
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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. (CC BY 4.0).

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Yang, S.-C.; He, Y.-J.; Wun, Y.-J. Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods. Appl. Sci. 2017, 7, 44.

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