journal article·2011-07

Propagation loss computation of W1 photonic crystal waveguides using the cutback technique with the 3D-FDTD method

R. Kappeler, P. Kaspar, H. Jäckel

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Abstract

Abstract Identifying the origins of the large propagation losses in substrate-type photonic crystal waveguides and subsequently reducing them by means of structural optimization requires a numerical model, which is flexible and accurate enough to allow a quantitative comparison. In this article we discuss the applicability of the cutback-method on numerical transmission spectra obtained from the 3D finite difference time domain (FDTD) method. We present two different implementations of the cutback-method and discuss their suitability to predict the propagation losses of fabricated structures. We compare the computed propagation losses with experimental data and find a remarkable agreement for almost the entire single mode regime of single line-defect waveguides.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Photonic Crystals and Applications · Photonic and Optical Devices · Optical Coatings and Gratings

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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