Dispersion Analysis of Twist-Symmetric Dielectric Waveguides

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