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 us- ing in-house codes implementing the full-wave Fourier Modal Method. Practical guidelines about advantages and limits of the investigated solutions are given.
A photonic-crystal selective filter / Pajewski, Lara; Schettini, Giuseppe. - In: JOURNAL OF TELECOMMUNICATIONS AND INFORMATION TECHNOLOGY. - ISSN 1509-4553. - STAMPA. - 2017:3(2017), pp. 107-112. [10.26636/jtit.2017.119817]
A photonic-crystal selective filter
Pajewski, Lara
;
2017
Abstract
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 us- ing in-house codes implementing the full-wave Fourier Modal Method. Practical guidelines about advantages and limits of the investigated solutions are given.| File | Dimensione | Formato | |
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Pajewski_Photonic-Crystal_2017.pdf
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Note: https://www.itl.waw.pl/czasopisma/JTIT/2017/3/107.pdf
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