Title :
Efficient design of polarization rotators by genetic algorithm and vectorial finite-element BPM
Author :
Correia, Davi ; Silva, J. P da ; Hernández-Figueroa, H.E.
Author_Institution :
Dept. of Microwaves & Opt., Univ. of Campinas, Brazil
Abstract :
A very short passive polarization rotator is proposed, consisting of a single-section asymmetric waveguide. The use of genetic algorithm together with the finite-element method was crucial to achieve a structure with 99% polarization conversion and a length of 90 μm. This optimum structure exhibits a very low total insertion loss: 1.16 dB.
Keywords :
finite difference methods; finite element analysis; genetic algorithms; optical design techniques; optical engineering computing; optical planar waveguides; optical polarisers; optical waveguide components; optical waveguide theory; physics computing; finite-element method; fitness function; genetic algorithm; integrated optics; low total insertion loss; optimum structure; photonics structures; short passive polarization rotator; single-section asymmetric waveguide; transverse anisotropy; vector beam propagation method; Algorithm design and analysis; Finite element methods; Genetic algorithms; Geometry; Insertion loss; Optical losses; Optical polarization; Optical propagation; Optical waveguides; Student members;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1242645
