A Photonic-Crystal Selective Filter
| Autor: | Giuseppe Schettini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Telecommunications and Information Technology, Iss 3 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1509-4553 1899-8852 |
| DOI: | 10.26636/jtit.2017.119817 |
| Popis: | A highly selective filter is designed, working at 1.55 μm and having a 3-dB bandwidth narrower than 0.4 nm, as is required in Dense Wavelength Division Multiplexed systems. Different solutions are proposed, involving photonic crystals made rectangular- or circular-section dielectric rods, or else of holes drilled in a dielectric bulk. The polarization and frequency selective properties are achieved by introducing a defect in the periodic structure. The device is studied by using in-house codes implementing the full-wave Fourier Modal Method. Practical guidelines about advantages and limits of the investigated solutions are given. |
| Databáze: | Directory of Open Access Journals |
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