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Full-Vector Analysis of Photonic Crystal Fibers Using the Finite Element Method

Masanori KOSHIBA

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Summary :

Using a full-vector finite element method (FEM) with curvilinear hybrid edge/nodal elements, a single-mode nature of index-guiding photonic crystal fibers, also called holey fibers (HFs), is accurately analyzed as a function of wavelength. The cladding effective index, which is very important design parameter for realizing a single-mode HF and is defined as the effective index of the infinite photonic crystal cladding if the core is absent, is also determined using the FEM. In traditional fiber theory, a normalized frequency, V, is often used to determine the number of guided modes in step-index fibers. In order to adapt the concept of V-parameter to HFs, the effective core radius, aeff, is determined using the actual numerical aperture given by the FEM. Furthermore, the group velocity dispersion of single-mode HFs is calculated as a function of their geometrical parameters, and the modal birefringence of HFs is numerically investigated.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.4 pp.881-888
Publication Date
2002/04/01
Publicized
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DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on Optical Fibers and Devices)
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