The coupling of light between wire-dielectric and photonic-crystal waveguides, characterized by a triangular lattice of air holes, is investigated through a finite-element time domain (FE-TD) approach, in order to optimize the transmission spectrum. The displacement of the inner-hole rows of the photonic-crystal waveguide, on both sides of the interface, has been shown to considerably improve the coupling, resulting in transmission values higher than 90% and 95% over bandwidths of hundreds of nanometers around 1550 nm. The new design approach is successfully proposed for input and output waveguides with width equal to √3Λ, as well as for larger widths, like 2√3Λ and 3√3Λ, with Λ being the period of the photonic crystal. © 2005 IEEE.

Design of photonic-crystal and wire waveguide interface / Rosa, L.; Selleri, S.; Poli, F.. - In: JOURNAL OF LIGHTWAVE TECHNOLOGY. - ISSN 0733-8724. - 23:9(2005), pp. 2740-2745. [10.1109/JLT.2005.853123]

Design of photonic-crystal and wire waveguide interface

Rosa L.;
2005

Abstract

The coupling of light between wire-dielectric and photonic-crystal waveguides, characterized by a triangular lattice of air holes, is investigated through a finite-element time domain (FE-TD) approach, in order to optimize the transmission spectrum. The displacement of the inner-hole rows of the photonic-crystal waveguide, on both sides of the interface, has been shown to considerably improve the coupling, resulting in transmission values higher than 90% and 95% over bandwidths of hundreds of nanometers around 1550 nm. The new design approach is successfully proposed for input and output waveguides with width equal to √3Λ, as well as for larger widths, like 2√3Λ and 3√3Λ, with Λ being the period of the photonic crystal. © 2005 IEEE.
2005
12-set-2005
23
9
2740
2745
Design of photonic-crystal and wire waveguide interface / Rosa, L.; Selleri, S.; Poli, F.. - In: JOURNAL OF LIGHTWAVE TECHNOLOGY. - ISSN 0733-8724. - 23:9(2005), pp. 2740-2745. [10.1109/JLT.2005.853123]
Rosa, L.; Selleri, S.; Poli, F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1200327
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