Publication details
Waveguide tapering using Conformal transformation optics for ideal transmission
| Authors | |
|---|---|
| Year of publication | 2019 |
| Type | Article in Proceedings |
| Conference | 2019 THIRTEENTH INTERNATIONAL CONGRESS ON ARTIFICIAL MATERIALS FOR NOVEL WAVE PHENOMENA (METAMATERIALS)) |
| MU Faculty or unit | |
| Citation | |
| web | https://ieeexplore.ieee.org/document/8900947 |
| Doi | http://dx.doi.org/10.1109/MetaMaterials.2019.8900947 |
| Keywords | Refractive index; Couplers; Optical fibers |
| Description | In this paper, conformal transformation optics (TO) is employed to guide the electromagnetic wave between two waveguides with different cross-sections. Owing to the properties of conformal mapping, an all-dielectric medium is obtained. The conformal transformation is derived by solving the Laplace equation. The tapering equation is obtained by conducting an optimization to achieve maximum less-than-unity refractive index while maintaining the uniformity of the refractive index at the input and output boundaries. The functionality of the proposed idea is confirmed by a simulation in COMSOL. |