Naslov
Dispersion Analysis of Twist-Symmetric Dielectric Waveguides

Autori
Castillo-Tapia, Pilar ; Van Gassen, Kwinten ; Chen, Qiao ; Mesa, Francisco ; Šipuš, Zvonimir ; Quevedo-Teruel, Oscar

Izvornik
Photonics (2304-6732) 8 (2021); 8060206, 9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo

Ključne riječi
higher symmetries ; twist symmetries ; frequency dispersion ; multimodal analysis ; circular polarization

Sažetak
We propose a circular twist-symmetric dielectric waveguide that is polarization-selective. In the practical implementation of optical fibers, a selective circular polarization is more convenient than its linearly polarized counterpart where previous knowledge of the emitted polarization from the transmitter is unknown. The analysis of the waveguide was conducted with three methods: an eigenmode approach, simulation of a truncated structure, and the so-called multimodal transfermatrix method (MMTMM). The presented simulations demonstrate that the operational band can be manipulated by tuning the parameters of the structure. Furthermore, the MMTMM allows for a direct and accurate calculation of the attenuation constant of the rejected circular polarization.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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