Ge-Doped Defect-Core Microstructured Fiber Design by Genetic Algorithm for Residual Dispersion Compensation

Author

Silva, José Patrocínio Da ; Bezerra, Diego S. ; Rodriguez-Esquerre, Vitaly F. ; Da Fonseca, Iguatemi Eduardo ; Hernández-Figueroa, Hugo E.

Author_Institution

Sch. of Comput. Sci., Fed. Univ. of Semiarid Region, Mossoro, Brazil

Volume

22

Issue

18

fYear

2010

Firstpage

1337

Lastpage

1339

Abstract

A special microstructured optical fiber, which may be used in a wavelength-division-multiplexing (WDM) optical fiber transmission system for residual chromatic dispersion compensation, is designed and analyzed. The proposed structure is obtained by introducing a small Ge-doped core at the center of a conventional photonic crystal fiber. The behavior of the resulting geometry has been optimized by a genetic algorithm in conjunction with an efficient vectorial finite element formulation. Numerical results show that the designed photonic crystal fiber exhibits flattened negative dispersion over E + S + C + L + U wavelength bands with an average dispersion of - 212 ps ·km^-1 ·nm^-1.

Keywords

genetic algorithms; germanium; holey fibres; optical design techniques; optical fibre dispersion; photonic crystals; Jk:Ge; defect-core microstructured fiber design; genetic algorithm; photonic crystal fiber; residual chromatic dispersion compensation; vectorial finite element formulation; wavelength-division-multiplexing optical fiber transmission; Algorithm design and analysis; Chromatic dispersion; Finite element methods; Genetic algorithms; Geometrical optics; Optical design; Optical fiber dispersion; Optical fibers; Photonic crystal fibers; Wavelength division multiplexing; Chromatic dispersion compensation; genetic algorithm (GA); numerical techniques;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2055235

Filename

5497080