Power Coupling Optimization in 2D Waveguides by Evolutionary Algorithms

Author

Dourado-Sisnando, Anderson ; Rodriguez-Esquerre, Vitaly F. ; Rubio-Mercedes, C.E. ; da F Vieira, Luana ; Ruffini, Igor M. T.

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Bahia, Salvador, Brazil

Volume

27

Issue

14

fYear

2015

fDate

July15, 15 2015

Firstpage

1561

Lastpage

1564

Abstract

The power coupling efficiency between 2D continuous waveguides and periodic segmented subwavelength waveguides using a taper composed by a segmented waveguide section with variable segment lengths has been successfully and efficiently designed and optimized using evolutionary algorithms based on the artificial immune system and the genetic algorithm in conjunction with the frequency domain finite-element method. Coupling efficiencies higher than 90% have been achieved for both evolutionary algorithms. The impact of the mutation rates for the artificial immune system and the initial population number for the genetic algorithm has also been analyzed in detail. The coupling efficiency of the optimized structures as a function of the operating wavelength has also been analyzed considering the C-band.

Keywords

artificial immune systems; finite element analysis; frequency-domain analysis; genetic algorithms; optical couplers; optical design techniques; optical waveguides; 2D continuous waveguides; C-band; artificial immune system; evolutionary algorithms; frequency domain finite-element method; genetic algorithm; initial population number; mutation rates; operating wavelength; periodic segmented subwavelength waveguides; power coupling optimization; taper; waveguide design; Couplings; Finite element analysis; Genetic algorithms; Optical waveguides; Optimization; Sociology; Statistics; Artificial Immune System; Artificial immune system; Finite Element Method; Genetic Algorithms; Integrated Optics Devices; Numerical Approximation and Analysis; finite element method; genetic algorithms; integrated optics devices; numerical approximation and analysis;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2432034

Filename

7108011