Slides from my D.Sc. defense presentation (in portuguese) titled "Cylindrical dielectric resonators and waveguides operating at microwave and optics: dielectric antennas and fiber Bragg grating couplers", at the Federal University of Ceará on 26 November 2010. My advisor was A. S. B. Sombra, and my committee included G. A. P. Thé, J. C. M. Mota, F. N. A. Freire, H. E. H. Figueroa, V. Dmitriev and D. X. Gouveia. Category: Teleinformatics Engineering