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An Analysis of an Optical Fiber with Two Inhomogeneous Sector Holes by Circular Fourier Expansion Method
Shinichi FURUKAWA Wataru SATOU Takashi HINATA Nao SHIMIZU
IEICE TRANSACTIONS on Electronics
Publication Date: 2008/01/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category: Optical Fibers
optical fiber, single-polarization, polarization maintaining, dispersion, Fourier series,
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In this paper, a fiber with two inhomogeneous sector holes around the core is proposed, and propagation characteristics of polarization maintaining region and single-polarization region are numerically analyzed by circular Fourier expansion method. In each case of the single-polarization region and the polarization maintaining region, a fiber is designed so as to satisfy the zero total dispersion at wavelength of 1.55 µm. Then, the single-polarization bandwidth for the single-polarization region and the modal birefringence for the polarization maintaining region are examined as the specific characteristics in each region. In addition, the power concentrating into the core region and distributions of Poynting vector is also discussed.