Resumen de Higher order mode conversion induced by discontinuities in waveguides (5 pages)
Jesús Pablo Lauterio Cruz, Jesús Manzanares-Martínez, J. A. Gaspar-Armenta
In this paper, we provide a theoretical prediction about the likelihood of producing high-order modes using, as far as we know, the simples mode converter. The mode converter is a simple discontinuous waveguide for which reflection and transmission have recently been reported. As a result of the scattering of the fundamental guided mode (TE0), we have found that the high-order mode excitation is highly dependent on the position of the discontinuity. On the one hand, we discovered that in the presence of a discontinuity in the propagation direction, only even modes (TE_(0) and TE_(2)) are excited, skipping the odd mode (TE_(1)). When a lateral shift is considered, however, both even and odd higher-order modes (TE_(1) and TE_(2)) are generated. Furthermore, after some lateral shifting, we found that only the pure TE_(2) mode is propagated.
