Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2055235
