Title :
Analysis of the refracting leaky modes in polished optical fibers
Author :
Sapienza, Antoônio R. ; Guimaraes, M.F.
Author_Institution :
Dept. of Electron. & Telecommun., Univ. do Estado do Rio de Janeiro, Brazil
Abstract :
In this paper, an analytical solution for the refracting leaky modes of a waveguide with circular core and large circular cladding neighbouring a dielectric halfspace is presented. This model is applied to D-shaped fibers. The results confirm what is verified experimentally: the x-polarization, normal to the surface, irradiates more than the y-polarization, parallel to the surface. The analysis of a structure with the cladding constituted by air is done. Graphics of the behavior of the real and imaginary parts of the effective index as a function of the spatial frequency are obtained for both polarizations and it was verified that the real and imaginary parts of the effective index increases as the halfspace distance from the core decreases.
Keywords :
eigenvalues and eigenfunctions; light refraction; optical fibre cladding; optical fibre polarisation; optical fibre theory; D-shaped fibers; bound modes; circular core; dielectric halfspace; effective index; eigenvalue matrix equations; implicit time dependence; large circular cladding; polarization states; polished optical fibers; refracting leaky modes; spatial frequency; Eigenvalues and eigenfunctions; Equations; Frequency; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical refraction; Optical surface waves; Optical waveguides; Propagation constant;
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.2003.1242664
