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- W2040559265 abstract "There is a clear demand in optoelectronic design for analysis techniques that provide accurate results with minimal computational effort. The spectral Index Method (SIM) is well established as a very accurate yet rapid semi- analytical technique for determining the modal properties of air-clad optical rib waveguides. The present work generalizes the spectral index approach to the analysis of propagation in fully 3D rib waveguide problems. The method is founded upon three practically observed features: fields are polarized, there is little penetration into the air cladding and continuous reflections are very weak with strong reflections occurring only at discrete boundaries. The new propagation algorithm retains the simplicity and computational advantages of the SIM. A full theoretical development of the methods will be presented, along with a discussion of the implementation and application to a typical practical problem illustrative of including taper-based spot-size converters. Comparisons with direct numerical methods show the new technique to be sufficiently accurate for the design of many optoelectronic components. Calculation times for the new method are significantly lower than those for purely numerical methods, making it well suited for use within an iterative design environment." @default.
- W2040559265 created "2016-06-24" @default.
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- W2040559265 date "2001-05-16" @default.
- W2040559265 modified "2023-09-22" @default.
- W2040559265 title "Generalized spectral index approach for the analysis of 3D structures" @default.
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- W2040559265 doi "https://doi.org/10.1117/12.426904" @default.
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