Produção Nacional
Ge-Doped Defect-Core Microstructured Fiber Design by Genetic Algorithm for Residual Dispersion Compensation
2010; Institute of Electrical and Electronics Engineers; Volume: 22; Issue: 18 Linguagem: Inglês
10.1109/lpt.2010.2055235
ISSN1941-0174
AutoresJosé P. da Silva, Diego Souza Bezerra, Vitaly F. Rodríguez‐Esquerre, Iguatemi E. Fonseca, Hugo E. Hernández‐Figueroa,
Tópico(s)Advanced Fiber Optic Sensors
ResumoA 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 $\hbox{ps} \cdot \hbox{km}^{-1} \cdot \hbox{nm}^{-1}$ .
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